Have you ever written a bug report for any browsers? There are currently two types of development communities:
1. Chrome and Firefox: You write a bug report and someone will take a look. There will probably be a short discussion and your bug may get fixed or there is a reason why it won't be fixed. I wrote a but report last week for Chrome and the bug got fixed within two days. The current Chrome Canary build already contains the bugfix. Filing bug reports for these browsers is fun, because the development community works.
2. Edge and Safari: You write a bug report and nobody gives a sh&t. I wrote a bunch of bug reports for WebKit and the feedback was exactly zero. Nothing. Not even a confirmation that the bug is valid (or invalid). And of course the bugs are still in there and they are getting more and more, because the development community is broken.
So no, Edge and Safari are the new Internet Explorer, they suck and they will continue to suck. Chrome is almost years ahead, and the distance will grow. Mozilla has the right attitude and is trying hard to catch up with Chrome. I hope they will succeed, because otherwise we will be left only with Chrome, Opera and Vivaldi, which are all based on Chromium.