No, it didn't. And I am not remotely surprised.
What is interesting is that Emery was recruited by Arsenal as a Europa Cup specialist, (among other things) and, while Arsenal reached the final last year, (and, of course suffered a heavy defeat), I would lay odds that this achievement will not be replicated this year.
Actually, I rather think that Unai Emery may be on his way out, and, moreover, I strongly suspect that the players are not giving of their best - that, as happened with Conte in Chelsea, - the players are subtly sabotaging him, subconsciously or very, very consciously.
While traditionally, Arsenal tend to be quite cautious about such things, (i.e. - the removal of managers, especially mid way through a season), the situation at Spurs - which had been stable - may have changed that.
This, along with Arsenal's lack lustre performances, tendency to completely collapse once challenged, and their calamitous defence, which has shown no sign of improvement this season, have all contributed to a collapse in confidence.
Of course, while the manager will be expected to take the blame, and be fired, and/or thrown under the proverbial bus, it is equally clear that the players are consistently under-performing. Candidly, many of them seem to have switched off.