Sony just doing what Nintendo has been doing for years.
I remember when PS5 was just about to be released (well, before it was delayed by covid stuff), some employees at an EB near me (not my regular, another one) were raving on about how PS5 will have BC just like XB1 has had for several years. Basically arguing that PS1/2/3/4 discs could be used in PS5 to download an updated digital version, even though no specifics were ever given about BC back then afaik. I wasn't arguing that it wouldn't happen at all, I was just saying that because it was just talk at that point and given Sony's record with PS4 (
plus them being Japanese and more likely to follow Nintendo's example of raping customers) I thought it was pretty unlikely.
I think that whole conversation started by me asking why they stocked way more PS4 games than XB1... "PlayStation is better"
Such views are only based on exclusives and nothing else.