Unfortunately this also disables it on sites where it makes sense. For example I have a simple tool to pick a random person or split people into groups https://playerone.kevincox.ca/

Without zoom disabled 5 people putting their fingers on a screen looks a lot like a pinch gesture. Disabling the default event handlers only works some of the time.

This is a common problem with the web, we can't have nice things because people use them poorly.