I don't think following the "mume vs incisa" advice is that significant. I do things "out of season" to all my trees all the time. That sounds more cavalier than it is because I do put a lot of thought into things and often adjust accordingly. Or, honestly, sometimes I just need to dare the tree to live so I can recover some space :{
I guess what strikes me is I never equated "wiring" with "trunk spliting". I'm not sure many would...but I don't see mention of trunk splitting in your schedule

I doubt many hobbiests even own a trunk splitter...though that may be a bad assumption on my part??
...but what's done is done...let the fun begin! I am very curious how this will turn out...please keep us posted!
From my experience, any problems won't really set in until the heat does. Even then, I think the biggest danger is winter. Cherries are known for bark splitting from frost/cold and yours will be unlikely to have healed well by then. You might plan on rewrapping the trunk before winter. 1) to see how it is doing and 2) to keep some extra protection from drying winds and cold until it heals well. You might look into a trunk wrap that breathes well for the winter. I'd let the top run as wild as it can this year as well.
Anyway...those would be my near term concerns. Down the road there may be some scarring issues to deal with...but deal with those when the time comes