I mean, of course it has. They have been quite crap for a season now and the general quality in the team has fallen off a bit of cliff from its peak. VVD was the best CB in the world for a couple of years and now hes a liability. Their midfield is a mess which means the fact TAA and Robertson can't defend is being horribly exposed. Their forward line has gone from being absolutely world class to being misfiring at best and teams can mark Salah out of the game without having to worry about the rest of the forward line picking up the slack and punishing them.
Stuff changes so quickly these days that you are only as good as your last season and once teams smell weakness they don't care who you are.