As a Fortnite PS4 player, I couls care less a about cross-play. All my friends have PS4s and the PS4 pool is more than enough.
So, meh. People should have multiple consoles anyway.
lol this is explicitly a problem for the very people that own multiple consoles. If you own and Xbox 1, Switch, Android phone, and PC, you can play Fortnite on all those things and your progress, cosmetics, and everything else transfer to everything. It's just an account. Otherwise, if you own a PS4 and Switch, you have to have 2 separate accounts with 2 different progression systems. Far worse a situation than the other guy.
Instead of saying 'people should have multiple consoles anyway' what you really mean is 'people should have 1 console only, and should never want to play anywhere else'.