These sorts of arguments probably help cement Google’s power. By giving the guise that the open source part of the equation can be the key to usurping Google’s power. Instead of it mostly being the other way around.
It would not be surprising if Google loves these tiny changes from Chrome and Android. So the discussions and sentiment never get close to how bad it got for IE or other monopolies and dangers of power.
To make matters worse, Google has put in place some legal roadblocks against device vendors using AOSP in markets where others can fill in for some of the proprietary Google parts.
These requirements are subject to regulatory action and I'm almost 100% certain that they will be deemed anticompetitive and therefore illegal.