Wenger accepts sup par performances and poor work rate, he even rewards it by not dropping players.
The team selection isn't so much a team selected for the opposition, more a team selected based on who Wenger likes, we didn't close Spurs down and chase the ball enough, we didn't look in the mood and weren't up for the match, any manager would have lost his rag at the players and would have certainly have them more motivated than they were, Wenger just wants to pick his favourite team and then just let them play if they fancy it.
Xhaka is a prime example, rubbish in every single game and yet still one of the first players on the teamsheet, anyone with any logic would try someone else, personally feel sorry for players like Lacazette, when you're not flavour of the day with Wenger you don't get a fair crack. There's no fairness in team selection at Arsenal, if the manager likes you, you play, even if you've been making errors left, right and centre.