You know what else will invalidate all the work savage raiders and relic farmer have put in? Stormblood.
This is the same in every MMORPG every time there is an expansion, your gear become useless quickly, giving high ilvl easily obtainable is a good thing, it gives casuals a chance at having better gears jumping into the expansion makes it easier on early level and might give casuals an incentive to do some harder content before the end of the expac since they would have an easier time with the boost from gears, wich also means it brings a new stream of player into content that is in dire need of partecipation.
It all won't matter in a few months, so just reap the benefits.