Having Google followed an OGC standard is an incredible good step forward for the google maps ecosystem. This can really speed up developments on the clients side. It was not that useful to have the best client if there was always a place where the data looked better. Kudos to google.
And if you are interested on encoding Geospatial Data there is a format called Geoparquet that is on the way of standarization: https://geoparquet.org/ Essentially adding metadata on the extensible schema metadata streucture that parquet supports. Think of WKB in a column. With more exciting stuff coming that way.