Most of that Google can't do anything about, because it's not under their control.
And it's really a question of money. If you want to fix all those mundane problems you describe, literally every one can be addressed by renting a better pipe and buying and setting up better equipment.
This Google product is clearly designed for high-end offices that already have all of those things under control.
Google owns one of the major consumer operating systems (Android) and a lot of videoconferencing goes via Chrome. They could absolutely be doing things like offering better connection quality metrics - look at how everyone currently ends up using a random shady "speed test" site.
Doesn't for me... but either way, they could do far more than that.
If I'm having connectivity issues to a person, I have no feedback as to what's wrong. If I'm having a connection issue talking to a person, I want to see my ping to their server, my ping to my router, my ping to my ISP, their ping to their router, their ISP, their server, how much packet loss... anything to help diagnose what's wrong.
Instead, when somebody turns into a slideshow with a robot voice, with no idea what's causing the problem.
And it's really a question of money. If you want to fix all those mundane problems you describe, literally every one can be addressed by renting a better pipe and buying and setting up better equipment.
This Google product is clearly designed for high-end offices that already have all of those things under control.