"Best Line-Up In A Long Time" - In 2014 he was right. The Master Chief Collection was a huge announcement and probably my all-time favorite of any E3 ever. Then there was Sunset Overdrive, Forza Horizon 2, Fantasia, Ori and the Blind Forest, Crackdown 3, Dance Dance Central Spotlight for Kinect, and a remake of Phantom Dust. Project Spark, Fable Legends and Scalebound were also announced. Even though they didn't pan out I'd say that's one heck of an E3 line-up.
"Greatest Games Line-Up in Xbox History" - In 2015 they announced Rare Replay, Sea of Thieves, Ashen, Forza 6, Gears of War 4, Recore, and finally a first look at Halo 5. While on paper the line-up is solid, it's probably not the greatest line-up ever in xbox history.
"Could Be Most Special Year Ever" - In 2016, the announcement of the Xbox One S and Project Scorpio were big announcements and one could argue they did make that year's E3 special. This because the OG Xbox One hardware was a flop and this is the E3 where MS was turning things around from a hardware PR standpoint. Games: Cuphead, Below, Dead Rising 4, Forza Horizon 3, Gears of War 4, Scalebound?
"More Exclusive Games Than In 2016" - In 2017 I'm not sure what he was referring to unless he was including ID@XBOX games, for which they announced a bunch. But they also talked about Forza 7, Ori and the Will of the Wisps, State of Decay 2, Sea of Thieves, Crackdown 3 and Super Lucky's Tale.
"Biggest Xbox Show Ever" - In 2018 MS showed a lot of games. Most were not exclusives but it was a pretty big show. They also announced the acquisition of 5 new studios that would be making exclusives for the xbox console. Halo Infinite was teased. Forza Horizon 4 was shown. Gears 5 and Gears Tactics were announced. Tunic, which is my most anticipated game for 2021 after Halo Infinite, was also announced. Nier Automata officially coming to xbox. Phil revealed that Playground Games is making an unannounced game - which turned out to be Fable being restarted from scratch. But if you look at the number of games mentioned or shown I don't think you can fault Phil's words: Battlefield V, Crackdown 3, Cyberpunk 2077, Devil May Cry 5, The Division 2, Dying Light 2, Fallout 76, Jump Force. Just Cause 4, Kingdom Hearts III, Metro Exodus, Ori and the Will of the Wisps, Session, Shadow of the Tomb Raider, Sekiro: Shadows Die Twice, Tales of Vesperia: Definitive Edition, The Awesome Adventures of Captain Spirit, We Happy Few, and some more ID@XBOX games. So can it be argued that it was Microsoft's biggest xbox show ever? I think so. I also don't fault press conferences where they show games. I want to see exclusives, yes, but I want to see everything that is coming out.
"Teases unannounced games" - In 2019, Project Scarlet was officially announced. Flight Simulator was a pretty big announcement. Way to the Woods was a new announced indie game. Bleeding Edge was a new announced game as well. Crossfire X announced to be coming to Xbox. Other games mentioned or shown: Halo Infinite, Gears 5, Cyberpunk 2077, Psychonauts 2, Star Wars: Jedi Fallen Order, The Outerworlds, Borderlands 3, Elden Ring, Dying Light 2, Ori and the Will of the Wisps, Blair Witch, Wasteland 3, Bleeding Edge, LEGO Star Wars: The Skywalker Saga, Age of Empires II: Definitive Edition, Battletoads, Dragonball Z: Kakarot, Gears Pop!, Minecraft Dungeons, Phantasy Star Online II, RPG Time: The Legend of the Wright, Sea of Thieves new content/updates, Spiritfarer, Tales of Arise, Twelve Minutes, Forza Horizons 4 expansion: LEGO Speed Champions, Borderlands 2 DLC, State of Decay 2 DLC and some lesser game announcements. So, in the end Phil was vindicated imo.
It's Phil's job to hype up the xbox brand. He uses hyperbole and a lot of colorful adjectives, but I'd say the only year that he was completely off base was 2015 (and maybe 2017?). Phil makes himself available for interviews and he's going to have a lot of quotes where he is saying positive things. The media outlets are also going to add their own spin to each article as well. I think it's obvious that MS is turning things around in the games department. If someone says they're excited for some unannounced games in 2021 then I think it's safe to assume there will be some unannounced games revealed this year.