I agree with you there.
I'll preface this by admitting to also liking Aitcheson and thinking he definitely belongs in the 15-25ish range, but I feel like some fans need to pump the brakes a little. I also didn't see the unicorn a lot of people claim him to be. Like any prospect in that range, he's got some warts.
There's a lot to like (great shot, plays with an edge, always shows up) but then also a good deal of counter balance of frustrating aspects in his game. On top of his average skating, he can be caught flatfooted or daydreaming on defense which puts him in bad situations. There are moments when he seems to want to be too much of a hero and can also get overly excited which leads to puck chasing and hit attempts that put him way off-position. He's chaotic for good, but also bad reasons.
Hensler isn't as fun at first glance and has a more conservative game, but he's got poise and has a sound game. I like him better than Aitcheson. But there's one thing with Hensler that bothers me a bit though.
With the skills and brain he's got, I feel like more than often he could do much more on the ice. I don't know if he's straight up scared to make mistakes but he nearly always makes the safest choice and refrains himself from fully using his skillset which could unlock a greater offensive dimension to his game. I can understand doing so to contain fires on that awful Wisconsin team, but I've had that impression at every level I've seen him on now. But that could just be some wishful thinking on my part for him.