To some degree a lot of people are now finding OCaml via dev YouTube influencers who highlight OCaml without actually having used it. There's a lot of enthusiasm, kind of like how lots of people were loving and super excited about Rust without ever using it even for toy programs.

Edit:

I have used OCaml in production and currently I don't see a point to doing it again for the vast majority of problems. From a holistic language + runtime point of view OCaml occupies a space where it's not useful enough from a runtime perspective to replace any of the more convenient languages that exist and not low-level enough to fill the spot of any of the good alternatives in that space. Modularity-wise functors are nice but ultimately plenty of alternatives exist even it the lower-level languages.

With all that said, people should probably use the hell out of it if they're excited. It's a bit tiring seeing the constant stream of misinformation regarding alternatives to OCaml, though. There are good reasons it's losing out in industrial use to even languages like Haskell.