This doesn't make much sense to me.
What do you mean by 'power creep'? At present, people can make equipment to a higher standard by collecting, over quite a long time, specific enhancements and applying them, and improving armour to the levels the devs allow. Whether people can do that slowly like now, or faster as some suggest, the end result is bound to be a gradual trend towards that new, higher level. Is the 'power creep problem' that people can reach those levels? If so the issue is the level, not how fast people can get there.
If the final 'power level' is right, just having a slower and more grind-like way of people getting to the level you determine appropriate is just another grind simply so people spend more time doing it.... we have too many of those already.