If you're implying that Google got tax breaks, and no one noticed the public data confirming these tax breaks, please provide evidence of the data that has been overlooked.
Show me the public data source where I could conceivably find that out and I'll do "please provide evidence of the data that has been overlooked". Because I don't think that data source exists.
I don't think you realize how opaque tax records are in many places. You seem to be implying that there is a way for the public - or even journalists - to acquire the tax and assessment information of individual companies. Attempting to do so is considered fraud in most jurisdictions (e.g. attempting to use a FOIA request for the personal information - including tax records - of someone else or a business of which you are not an officer).
You are saying if I bought a piece of property and paid property taxes on it, that all of my business taxes would suddenly show up in the property tax records?
Here's an article discussing the topic at large[0] (and Google is one of the beneficiaries here).
[0]: https://www.theguardian.com/cities/2018/jul/02/us-cities-and...
Yes, this is common. But just because it's common doesn't mean it's right or should be allowed.