FFVIIR is my first FF game. Only two words to describe it: super brilliant.
It has managed to get me into the OG's lore, CC, AC, and stuff. I believe that Square Enix wanted the players to have an understanding of the compilation in order to get the best experience.
Likewise, it's a REMAKE, not a REMASTER. Why would I (as a new player) play a game that I knew how was it going to end? (*SPOILERS* Aertith's death, Meteor, Holy, etc.)
They are trying best to get new fans into the franchise before developing XVI. Expanding the original FFVII with an unknown journey is a great way to start, and I think they nailed it pretty well.