Yeah you absolutely should put olive oil on top. Also what you can do is blend green chili with a bit of garlic & salt and a lot of olive oil. And then drown the hommos in it.

In the end I can’t stop anyone from doing weird things to their food like adding pesto to hommos or cream to carbonara sauce or making British food in general, but sometimes there’s a reason that people have been doing things in a certain way for a long time