OK, but that's essentially "argument by authority" + "everyone is doing it".
They certainly have their reasons and they definitely aren't stupid, but it would be more useful to know what those reasons are and in what scope they are applicable.
Why types are good (even essential) for large projects has been documented quite extensively. Internet pushed JS to the forefront and as projects increased in scope and ambition, types became unavoidable.
More recently, see how there's a strong push towards types in Python. AI/ML is to Python what the internet was for JS. And types are here.
They certainly have their reasons and they definitely aren't stupid, but it would be more useful to know what those reasons are and in what scope they are applicable.