It's just kinda bulkier armor, tbh. The individual gadgets and weapons are the unique part of a Tinker, not the suit which is just there to bring tiny races in line with their towering, armored allies.
I don't know why you'd doubt that. Those are pretty classic gnome and goblin mechanicalcreations. The most recent "Tinker" NPC in the game with significant abilities, Millificent, uses Squirrel bombs, Rocket Chickens, finger lasers and a shrink ray. I know you really want to try and get away from Tinkers being a "silly" or "whimsical" class because you feel like that potentially harms the chances of it being implemented, but that's exactly what the class is: Whimsical. Even Gazlowe, who lacks abilities that are physically jokes, has jokey ability names. Gelbin's moment in the Broken Shore cinematic was the sole light-hearted part, the part where everyone smiles or chuckles.I seriously doubt you're going to see exploding chicken bombs or sheep. You're more likely to see beam weapons, missiles, machine guns, flame throwers, gravity weapons, robotics, and various types of explosives. There's probably going to be some melee attacks in there as well.