Are you young? Genuine question, not an insult. Do you not remember how sites were arbitrarily and lazily coded to work only in IE and everyone else just had to put up with badly rendered, broken pages because 'Well you should just use IE like everyone else, and to hell with standards'? Many devs take this attitude today and only test things in Chrome, because 'everyone uses it'. Open standards for the web were implemented for a very good reason, and Google doesn't follow them. You can make things to the standard or you can make them for Chrome - not necessarily the same thing, and it's the end user who loses out. One ought to be able to open any given page and have it behave the exact same way in Chrome on Windows, Firefox on Linux or Midori on FreeBSD.
Google already takes egregious liberties with open standards, including purposefully using deprecated libraries for YouTube so that only Chrome can load it quickly, and all non-Chromium browsers feel slow to end users to prompt them to switch. They already have far too much control over the web and, while they have made some positive contributions to standards they've flagrantly peed in the face of others and - ultimately - the end user and the open internet.
Losing yet more competition in the browser engine space towards the behemoth of a Chromium/Blink-only internet is a Very Bad Thing. We used to have a decent range of open engines, and now we're down to two. That's not positive progress. It worries me that you can't see this if you're a web developer. Maybe it's all that Southport air.

Read up some of the pieces by EFF, Mozilla, W3C and others on the matter if you're interested.