No benefit at all really. Seeding is done on European Coefficient which we have very little of and therefore are seeded in Group 3 of 1-4. The seeded groups are in one of the Europa League threads!
6th qualifies us for Europa League
7th qualifies us for Europa Conference
If we lost the match versus Man City, a heavy defeat to Villa may have seen us drop to 7th.
Avoiding defeat against Man City means that Villa can no longer overhaul us.
On top of that 6th doesn't always qualify you for...