Oh boy is this thread a can of worms.
In my view, there are many paths to bliss and even more to hell. What we thought that we understood is one of the major character deficiencies in people that can not get space between them and concepts. Lead trumpeters that are VERY convinced that their success is unique often have trouble with other concepts. I also would not recommend that fortunate, excellent players mess with (their own) success.
I will maintain that there are as many "extremely successful" players with and without buzzing. That is enough for me not to damn one side or the other. I would guess that there are also a great deal of players getting everything wrong, but they can only be cited as bad examples.
Up until a couple of months ago, I never buzzed (55 years). Three years ago I had an accident that has now lead to 100% implants and dentures. With my old routine and new teeth, I was able to get the basics back, but things above the staff were elusive (although previously range never was an issue). Since 6 weeks, I have a steady free buzzing program and my tone, articulation and range are coming back at about a half tone every 2 or 3 days. The targeted free buzzing may not be the only way, but 10-15 minutes per day have certainly done wonders for me in getting a grip on embouchure geometry.
Now, I consider Al Vizzuttis' rant to be "mostly true". The exaggeration however is that occasional buzzing will change/hurt our concept of tone. We are creatures of habit. If we do 5 minutes of buzzing per day and an hour of normal practice, what are the odds that buzzing would kill that? In my case 15 minutes of buzzing and 2 hours of practice seems to be a great mix. The targeted buzzing has built strength much faster than my standard routine did. I do not consider my "tone" to be the focus of buzzing. Maybe it is just teaching an old dog new tricks when the old ones don't work anymore. I don't know or care. I am now playing at a level (again) that gets me rebooked. Buzzing has no cost of business. I am sacrificing nothing.
I was fortunate that the accident and aftermath all happened in the Covid era where there were hardly any gigs.