It's not so simple and I'm not sure it's the truth. As proud of their product as the Pro Vape engineers must be, I'd seriously doubt that any would agree with your statement.
While I like each of my Provaris a lot, I think there are others who also do a superlative job. For instance, Dicodes. Everyone has opinions, but to me the Dicodes are clearly smoother and as accurate as my Provaris. I've yet to speak with anyone, who after using a Dicodes, hasn't agreed with my opinion.
For Asian mods, the Yihi chip is very, very good also. It might be a touch less smooth (so close I can't really make up my mind) but it also does a great job of temp control - or "temp guessing" if you must.
But if you're talking the mainstream mods, Provari is at the very top and miles ahead of Sigelei, Kanger,
smok, and all the rest of the "mods of the week" club coming from China.
I know you sometimes have tunnel vision regarding Pro Vape and I don't disagree that it's an exceptionally good device. But as good as it is, "best in the industry" is a bit of a stretch to me. And I realize this is a Pro Vape-sponsored medium, but I think we can educate new users and share our admiration without having to resort to puffery. I suppose it's hitting a nerve for me due to all the campaign ads I've suffered through.