This IGN article comforted me somewhat (Destiny)

by Xenos , Shores of Time, Thursday, September 15, 2016, 15:03 (2990 days ago) @ CruelLEGACEY

So where was that line of thinking for the PS exclusives until 2017? Those are just words. I think it's highly probable it will go pay to win or at least into the realm of scumminess at some point.

He directly mentions exclusives in the article, it's an agreement made with the publishers. I'm pretty sure I know though what happened with the PS exclusives by the way. The agreement most likely said that the exclusives would be that way until Destiny 2, but then, as we know, Destiny 2 got pushed back until next year. So when they originally stated until at least Fall 2016, that was based on the original timeline, but the agreement with Sony didn't have a date, but an event listed.

And also "Those are just words" is one of the most useless things to say, what proof do you have they will go pay to win? Any evidence to actually give us, or just a pessimistic attitude?

His pessimistic attitude has more evidence to back it up than the reassuring statements coming from Bungie. It is a fact that Bungie/Activision have been slowly but steadily pushing the envelope further and further when it comes to microtransactions. It is very deliberate; they know a sudden lurch forward into full-blown "mobile gaming" monetization would spark outrage in the community, so they go a tiny little bit at a time. There are complaints, but a few months later we all just accept it as the "new normal", then they push a little further.

We are a very large way away from pay to win. It very much feels like a slippery slope argument.