I don't like it either but professional footballers should be able to adapt. As a youth we played on concrete, grass, gravel, compacted mud, astroturf and the other lower end of astroturf which is just like green carpet, never had a problem playing football as long as it was fairly level.
We'll see how other teams fare there.
I've played on both grass and astroturf pitches for a good decade and there are big, big differences. Its not an insurmountable difference, but its healthy to know what exactly the differences are.
Astroturf is VERY hard on the knees. A grass pitch "gives way" more when taking sharp turns and stopping, whereas astroturf has a harder stop. In a published study of US College football, knee ligament injuries are 40% more common on astroturf than regular grass pitches.
Preferably you also want special football shoes with studs made for playing on astroturf. I saw Shaw and more slipping around a bit in the early parts of the game for no good reason other than loosing their footing. No idea what shoes the lads wore, but if they were wearing normal studded boots, grip would have been an issue in sharp turn/stop situations.
The synthetic surface needs to be heavily watered before a game so the synthetic grass softens, or else the ball is going to roll a lot less. When Ronaldo scored the 0-1 goal, the ball stopped rolling short way across the goalline because of the surface being dry. The pitch had to be watered again at halftime since it naturally dries up.
The ball behaves differently on astroturf, and thats the big sticking point for me. Young Boys are of course used to playing on this pitch. The ball bounces with a sharper angle than it does on grass, its kinda hard to accurately explain, but its something youre aware of when you actually play. When the pitch is wet, the ball also floats on the surface faster than it does on normal grass, so there's no accurate ball movement like you'd be used to on grass, it's just different. Things like receiving a hard pass or running with the ball, you just expect certain things to happen and a certain fell of the ball when you receive it or run with it. Astroturf throws you off if you're not used to it. Against a Champions League team, of course its going to be a challenge.
None of that takes away from the fact that we were comfortable up to the red card when the playingfield was even. It completely fell appart after that. Young Boys to their credit utilized every bit of familiarity of their pitch conditions and made life very hard for us when they gained the advantage of an extra player.
And regardless of conditions. Jesse Lingard should not have directly assisted a Young Boys winning goal, regardless of situation. Its one of the worst passes I've ever seen in football.