I Just don't understand optometry profession...

Honestly, what is the deal with all of these people bashing the profession of optometry for its future? I have looked at so many different websites for careers and all of them project that the profession is likely to grow faster than average compared to other professions, and that the median income is around $90,000...but why do we all see people telling us there's no future for this business and that the pay is not good?

This quite frankly doesn't make any sense to me...like educated people dealing with stats and careers are saying its a growing profession while only a few people on here are saying it's completely dying. If optometry was such a joke then why do you need 4 years of optometry school to become an OD - I don't feel that Walmart, Lenscrafters, etc. could replace ODs that can actually diagnose and treat complications/diseases of the eye.

I'm sorry to be ranting, but honestly I think it is so difficult to get a consensus of this profession. I am going to be a junior in undergrad and have been going back and forth trying to decide on what I want to do with my career (in terms of opt, PA, DO, etc) and this lack of certainty of the profession is just frustrating me...