> Yes, the life is too hard argument. This comes up a lot and its purely subjective.

It is pretty obvious that platform-only approaches are riddled with problems that are unacceptable in professional environments that develop production-graded software. Polyfills and caniuse show one part of the problem, "your browser is not supported" and "designed for chrome" is another, etc. Only someone who is completely detached from professional settings would argue otherwise.

> If you know what you are doing it is far less effort.

Those who know what they are doing are knowledgeable enough to simply avoid the problems caused by platform fundamentalism. Not knowing this is a skill issue.