I think most of us would simply like a rimfire gun to come apart for cleaning as easily as most centerfire guns.
I'm a field service tech and the biggest reason I like simple-to-clean guns is that I don't want my hobbies to seem like work. Same reason I'd rather not repair my own cars on my days off, even though I have to.
My shooting buddy, that is a fellow field tech with the same company, bought a MKIII a few years ago and that thing sure shoots well. Then when we go home and sit at the table cleaning guns together, I swear it takes both of us to re-figure how in the heck it went back together from the last time he had it apart.
I admit, I passed on a Ruger MKII back in the day and a Ruger MKIII just a few years ago for other guns. If this MKIV takedown feature would have been included in the MKIII, well . . . I'd own a MKIII.