Honestly, it's really tough to pick it out from such a high level. You can also see countless companies that succeed in spite of the fact they're doing the wrong things, if you follow the business success playbooks.

Businesses and markets are really complex and it's difficult to look at individual businesses or decisions and make definitive claims. It takes a lot of time and research to pick apart the different factors that correlate most strongly with success.

Does that mean PG's observations are worthless? Not at all. Between today and those research papers being written, we need to make decisions based on observations that we or others make. Some of those things will be helpful, some will be harmful and some will be irrelevant. We do the best we can with the information we have access to.