If you can't see the difference, you have not read all the facts.
SF5 wasn't announced for Xbox 1 then bought out by Sony. Tomb raider was announced and happening on all platforms, until MS paid up.
Of course SF5 would have happened eventually, without Sony money, but they had no plans to do one soon. Also they will lose money by letting it be on PC, yet it will be out on PC. Is Tomb Raider on PC? Even just Windows 10 exclusive? No.
I won't be buying either game, mainly out of interest.
To make clear: I hate moneyhatting, exclusive and timed exclusive features/dlc altogether. E.G. Disappointed that dlc will be late for cod now on xbox, even though it doesn't affect me.
I love 1st and 2nd party exclusive full games.
PS, PS2, Gameboy Advance, PS3, PSP, PS4, Xbox One