I think the corporatization of pride parades (like this article advocates for) is both harmful and helpful, insofar as its a positive for those of us in the Overton window (eg: gay people like myself) but it drowns out those that society still violently rejects (Trans, enby, pan, poly, etc) with corporate advertising rather than forcing society to improve.
The big joke is that society is always going to be violently rejecting some outgroups; it's just a human universal to want to make scapegoats out of thin air. Labeling does not oppose this process; on the contrary, it facilitates and encourages it. There is value in explicitly promoting tolerance, inclusiveness and openness as real virtues; but to assume that meaningless quips like "your workplace should be LGBTQIA..." help this message is simply delusional. Your workplace should not be LGBTQIAetc.etc., and the less it gets involved with that sort of thing, the more LGBTQIA folks will be able to trust it to do the right thing in the long run.