Seems to me that if you allow players full agency over their magic items through crafting, the entire system comes crumbling down. It's almost like we should restrict the players for pacing and power reasons. If only WotC could have foresaw this.
Why is it WotC's fault? Seriously. We have DMs for a reason. Some groups are not going to have an issue with the PCs glowing like Christmas trees but figure out how to adjust encounters to compensate, others are going to want to severely limit magic (crafted or not), others are going to find a happy compromise.
D&D is a toolkit, it doesn't tell you exactly what to build.