It seems this is the Google way. They kill one product (especially a desktop product) and it takes years till the new one is on every feature on the same level as the old one... look at Picasa vs. Google Photos. Even today Picasa can do many more things that Google Photos cannot do today. I'm sure the native/old Google Earth has a ton of stuff which is not ported to the web version.
Good they cannot convert Chrome itself as a web app :D
Good they cannot convert Chrome itself as a web app :D