That is probably true but most would require 10x the development effort at least and be obsoleted much sooner.
And then users don't want generic lowest common denominator applications; users want software to make the best use of the platform.
This might as well be Java.
Chromium specific certainly isn't as good as open standards, but it isn't as bad as Java. Once chromium is ported to something it doesn't face legal uncertainty.
Only the two companies that tried to screw Sun had any issues with it.
Whether or not someone owed damages is immaterial to the problem of trying to get everyone an appropriate license who might want to run your software in contexts you haven't imagined yet.