Thanks for showing interest in what the community have to say about the wipe.
Imo this is plain easy. If the upgrade system is gonna be revamped to remove the RNG component then at least every piece of gear should go back to +0.
Ppl would not even try the new upgrade system at 70cap unless it ends up being too easy. +15lvl60 is good enough.
If you dont want to wipe, then dont change the upgrade system.
Do players want a new upgrade system? Thats the real question.