That's interesting.  I wonder we will see more digital-first releases going forward.  I would let the developer make more money, and keep people from trading in the game when done.

Have you looked at the top 10?

How does the bolded help Sony in any way shape or form from the titles in this list? 

I'd guess both MS and Sony are making the same or less from digital sales, unless it is their own title.

That means PS has 105 million out of 210 million, which means 50% marketshare for consoles with online storefronts.

It also means Xbox has ~46% marketshare for consoles with online storefronts, and the Wii U has ~4%.

Now even if we assume the Wii U has zero digital sales, which means that the remaining 37% here are all xbox, PS still has a higher attach rate, because it's 63% online sales matketshare versus 50% console marketshare, while for cbox it's 37% online sales marketshare versus 45% console marketshare.

Total consoles might be the same but id wager that current active users are skewed more towards playstation hence the bigger market share.

You sure you aren't thinking cross-gen?  Cross-buy means you buy it once and can play it on either platform.  Only one on that list that had that option was the RE remake.

Cod, destiny and battlefild had that too limited time frame

In January?  I recall when the system first released there was a cheaper "upgrade" model for it, but no cross-buy where you paid one price and got both games, especially in January of 2015.