I agree. Or even if nothing explodes, I'm worried that during the unfolding something will break or get stuck and, and unlike Hubble it won't be "easily" repair

I agree. Or even if nothing explodes, I'm worried that during the unfolding something will break or get stuck and, and unlike Hubble it won't be "easily" repairable (if at all). Hopefully this doesn't happen, because it is a once-in-many-decades project.