I think it would be a good idea, but I don't understand why the community has such an erratic behaviour towards it...
There has been since the PHB publications quite a few players and DM noticing the lack of an official generalist Wizard option, and wishing there was one.
In UA the designers came up with the Loremaster, but seriously botched it by making it too powerful. I felt almost like they purposefully rigged this subclass since the start so that the feedback would be negative and WotC would have the excuse to shelf it.
And don't tell me that "we already have other ways to represent a generalist Wizard" because this is true for pretty much every character concept, especially for the Theurge which looks like the Wizard subclass we'll most probably get, despite there being already multiclass Cleric/Wizard, Arcane Cleric, and the Magic Initiate feat to represent a hybrid.