Is all of that really a problem when the companies seem to have shown that none of that matters? The increased cut is apparently more valuable to them.

And I also should note, half of those items don't need to implemented in a store. People ask for them because they are implemented as extras in other stores, but strictly speaking the distribution and support are the only things the store needs to have to be called a store. Achievements, friend lists, user reviews, and cloud saves can be provided by separate services and work just as well, and could result in a higher cut for the vendors if the store doesn't have to shelter the cost for that.