Yes it doesn’t, but what I mean is that people sticking to engies being only due to “fun” is wrong. It is multifaceted, like many things in SD gameplay - a golden middle of stuffs such as fun due to abilities, fun due to non-underpowered weapons and feeling of responsibility for the objective which is based on forced and separate class abilities. Take one of them away (that is, make objectives agnostic) and you lose everything - noone plays that class/character. In this particular case - noone cares about fulfilling objectives because any other class can do and as a result, when something has several owners at once, noone really takes care of it, hoping the others would do.
Yes and engie IS underpowered, I wonder why is it still a question? For example Proxy. She has an ok shotgun, but her SMG is just meh. This character has no chance at ranges above medium and only the shotgun and mine can’t compensate for that to maintain the weapon fun component. I hope I made myself clear because this is a very complicated issue 
It is of course a personal feeling, but hell, we have little data on our hands so mostly have to use the gut feeling and our observations.
Tackle the core problem of the characters weapons and abilities - we had exactly the same argument 6months ago when the soldier wasn’t being played and SD gave him the C4 so some poor sod had to play him.
And thanks God we had this discussion! Giving C4 to soldier was one of the best things that happened to Xt. If they only kept the abilities split by classes, rather than making them pseudo-agnostic…