Sounds like pretty typical East Coast and Detroit talk-slanguage to me. But then again, I'm used to it, I can see how it's off putting if you don't hear it every day.
I don't think it's a big deal. Unless it sounds super forced like Tasty Steve, or when someone's trying to impress Yipes on the mic or soemthing.Mainly talking about all of the "ooh, ooh, ooh" during every combo and using all of the Marvel terms Yipes came up with like Dirty Snow and stuff.
Not the EC slang you're talking about which footwurk doesn't even use.