True, but you do need to make sure to handle signals properly - there are special requirements for PID 1. https://github.com/Yelp/dumb-init/blob/master/README.md has a niceish explanation.

It's one that repeats two common errors, though. The first error is obvious, as it is a major point claimed. The second error is forgetting that another of the actual major responsibilities of process #1 is system management, in particular various necessary initialization and finalization tasks, that (pertinently for this discussion) init=/bin/bash does not perform but that proper emergency modes do.

* https://unix.stackexchange.com/a/197472/5132