Sometimes it is not conflict aversion as much as, and maybe i am speaking for myself here, being unsure if the opinion/judgement you have and are about to express is valid or if this is a real bad misread. Maybe conflict aversion is a form of short-sighted kindness
I think what you're describing is a form of conflict aversion, where the (tiny) conflict is what would clear up your read, or the group's attitude on something, for going forward. Short sighted kindness is a nice way to put it
I’ve often been the only person in the room willing to confront things directly. (I don’t like doing it but unresolved issues just get worse.)
What a person says about people who are not there is telling.
When it’s not outright malicious, it’s usually fear. It’s something they don’t want to happen that stops them from saying it. (Depending on the situation it may be entirely justified.)
Kindness does exist. There’s plenty of times you don’t want to upset somebody else for their sake.
There’s nothing wrong with conflict avoidance being the default. It only becomes a problem when it stops you from conflict where it’s necessary.