"Nobody" here means few, or more loosely, much fewer teams than before, not "literally 0 people/teams".
And the group mentioned is (I deduce) not generally individual devs, enterprise devs building some internal thing, and so on but teams in companies doing public-facing SaaS, teams in startups, companies like Amazon/Google/Facebook/Apple all the way to AirBnB etc, and so on.
Yes, exactly. The larger the team, the more likely someone is a front end expert and wants to use latest cool framework, which will by its nature require a build step. Even for something simpler, you'll probably want it for cache busting, minimization, etc.
And the group mentioned is (I deduce) not generally individual devs, enterprise devs building some internal thing, and so on but teams in companies doing public-facing SaaS, teams in startups, companies like Amazon/Google/Facebook/Apple all the way to AirBnB etc, and so on.
So, you don't really need stats for that.