Arsenal were clearly motivated by the comments of Watford's Troy Deeney after the reverse fixture five months ago, referring to the team's lack of "cojones", and Wenger was clearly satisfied with his team's response of a win and a clean sheet, Petr Cech's 200th in the Premier League.
Despite that win in midweek, Arsenal fans demonstrated their apathy towards the team, with thousands of empty seats on show at the Emirates stadium on Sunday.
The Hornets' best chance of the game fell to captain Deeney after Pereyra had been fouled in the penalty area by a combination of Ainsley Maitland-Niles and Alex Iwobi.
Mesut Ozil has written his name into Premier League history as he notched his 50th assist to put Arsenal ahead against Watford.
I think we take the manager for granted, I am really happy because I am here because of him.
"I am really frustrated because of the rules", added the prolific frontman. He left the club with 165 clean sheets in the Premier League, being only 4 away of the previous record established by David James over 18 seasons and 572 games in the Premier League.
He added: "When you are in the hard moment and you have a run of results which go against you, you need to look at yourself and find the way out. We had a nightmare week, and so overall we still have some work to do, but we are in a good way". "We feel the confidence is back", Aubameyang said. And they're [rules] a bit ....not maybe stupid but something like that.
"But the most important thing is when the team wins".
The Gabon striker is ineligible for Thursday's AC Milan clash at the Emirates Stadium due to his European involvement with former club Dortmund earlier this season.
The Gunners are favourite to cruise through into the last eight of the Europa League after a comfortable 2-0 win at the San Siro in the first leg.
Watford play in the Premier League next Saturday with a trip to Liverpool (17:30 GMT).