I mean how many data's you are moving on iPad vs PS5. I admit I wrote this post at the beginning of the gen:
Why both manufactuers sporting soldered SSD on the board? | NeoGAF
And since the SSD on PS5 could act as a RAM extension for the games (as the presentation goes), I think it's legitimate concern. Besides that 2019 MacBook, which I wrote from back then shit the bed, because of SSD. Yeah I did a lot of compilation and that sort of thing (moving large amount of data/day), it was warranty repair, so it's I guess okay (also only 256GBs, so less reserved cells). But data unrecoverable (granted not big of deal for console). So it depends the usage of the drive, it depends how much cycles each memory cells have to withstand. Doing server tech a sort of side job also and I had a quite a few NVMe drives starting to wear out (they well, they are pretty much write something all the time, it's in science institute and since it has HDD backup in each day, it simply does not matter that they last year and half, it's more of a buffer).
So for me it depends how the SSD will be used, but based on the presentation it seems like you can use it as virtual ramdisk. Also this obviously comes towards both consoles, but back then it wasn't exactly known how S|X SSD looks like.
So yes you can say that I am concerned it and my favorite thing would be just to have some cheaper console with NVMe slot, so I could sleep well in the night. In my life I have been unfortunate enough to lost quite a bit of SSD drives. Not sure if curse.
Let's wish our drives to stay healthy for a loong time my dudes and dudettes.