I have to agree. Very dissapointed with Frontier for going ahead with this change, especially after the high majority of the 'Focussed Feedback' on this change was very negative and the player base were clearly against this change.
Sandro Sammarco responded on the livestream saying that it won't actually take too long to upgrade a module from grade 1 to 5. That's not an acceptable response to this, IMO. 'Too long' is a subjective term, what's not too long for Sandy may be far too long for me. It seems like most players are agreeing that it is going to take too long for them, sadly Frontier have chosen to ignore this.
Maybe Sandy can do a quick livestream showing us how quick it is to upgrade a module from grade 1 to 5? Without his dev tools and having to collect the actual materials!