The evidence for that is dubious at best.
Anyway, the game's out 3 days late in Europe so unless I VPN it for PC or hope that it gets mailed to me early on PS4 a lot of people will play it before I do so it's not going to be a surprise.
I'd think most people on the fence are pondering whether it's worth buying for the additions they've made to game modes, not gameplay which will probably be mostly the same. Not expecting huge leaps, though I'd at least that online associations are better, automatic playcalling is fixed in MyCareer and that some of the VC/Online check things have been at least scaled back a little.