I’ve been doing the same as far as reinstalling when an update goes awry. Not super convenient, but not too painful either. Overall I’ve found the LunarVim experience worth it. I think you’re right, it’s a quick moving package and bumpy updates are par for the course.
I’ll give SpaceVim a shot. LunarVim is great, but it’s good to see what else is out there. I love vim in general, but I’ve found myself killing too much time fine-tuning/breaking my config. LunarVim more or less works out of the box and gives me what I want. I’m curious to see what SpaceVim has to offer.