This was all mentioned multiple times in PTR threads that blues answered to, so it's not like they don't know. The devs chose to ignore the complaints. Their argument is that it gives chance to bad relics to get better, but they completely ignore how gear is distributed in raids with a Master Loot.
The only way around the crucible is to just roll on relics that have good traits and hope the RNG is good in the crucible. It's not worth rolling on bad relics hoping for RNG to improve them. Although there's nothing to help you on pugs, where everyone will roll like crazy.