[Exxy]

Although there are a lot of points to respond on, I'll try keeping my reply short (for the sake of time and me probably needing sleep at the time i'm posting this, maybe if I can remember after waking up I'll throw more counterpoints here):

-The robots are not meant to be comparable to Player Characters, there's a reason why you think they're weak in this regard but they are still worth it.
-Even as a crit-based Monk I have relative difficulty hitting Arena Combatants with crits unless I'm stacking all possibilities (when you said Luck I assumed you meant criting, not actual Hit procs).

I realize this won't sit well with you but I think you're taking too much of what Engineer does good for granted. Yes, they're no end-all-be-all class but I don't believe they're in an inherently bad position; we're making steps at least.