Well, than the blog posting is without merrit.
If you specifically chose a technique for something you should understand its properties. And then you deal with those properties. Doesn't make any sense to complain about having to deal with them when comparing with a technique that does not have them.
Like complaining that parallel processing with child processes needs extra work when accessing shared data and stating that multi threading would make that way easier.
"They could ignore that completely and have each user install Chrome in their home directory..."
"...but apparently it is easier to write a bunch of code to work around rpm/deb-style package management then to try to convince Linux users to not depend on rpm/deb for installing and updating Chrome/Chromium."
Well, if it is easier to deal with app store limitations than not to be in the app store than that is a conscient choice. Complaining on how easy it would have been not to be in the app store is just whining.
So marketing (or managment) decided that being in the app store outweights extra engineering effort. Deal with it!