I know some folks have a more refined idea of what they think it is, but yes usually here when someone talks about hockey IQ it is just filler to explain what they don't understand about a player. We should really try and explain the players better and stop using IQ
I've usually found that to be "consistency" (or "solid", solid is for people that really don't know).
But to your point, hockey sense or hockey IQ - like anything else - can and should be broken down by a good scout.
If someone said, "[Player] is skilled." - ok, skilled how?
"Great hands."
Ok, great hands where? In space? In traffic? On the outside? Outside-in upside? Inside-out? Great hands at speed? Or fat kid hands, where they only show standing still or not in stride? What's the puck control look like? What's the skill chaining look like? What's the puck control window? Then you leak into deception setup and maneuvers, etc. and the scalability of those things...
Hockey IQ/sense is relatively easy for me because...I can't really describe this without sounding like a weirdo, but I can sort of put myself in the play and look at the game through that player's eyes and figure it out. That's why in my reports you'll see it broken out...talking about spatial awareness, risk assessment/mitigation, etc.
Overall, I agree with your point - describe characteristics better and why they will or won't translate. It's all there for folks that can figure it out...but it's not easy. Find me a perfect scout haha