Lol, it's not even a foul. Sessegnon sees TAA coming, stops running, and just goes down like a leaf.
He is allowed to have a difference of opinion though. He’s not been nasty nor provocative, just put forward his thinking.
It's not a valid opinion though, because everyone can see from the side on replay that Alexander Arnold pushed him. The push is a fact, so don't say he didn't push him. A valid opinion would be that Sessegnon made a meal of it and went down too easily.
Someone might say that Milner is having a good game today. It's not a valid opinion because Milner isn't playing.
Similarly this statement that Sessegnon "stops running" is patently untrue. When posters say nonsense like this, they rightly get called out on it.