I predict they will have SB wait times way down on headliners at Disney Parks around the world eventually-along with the FP+ crowd for the rest. How many new attractions/parks come on line with minimal waits, and how they get there and the final product is the only unknown, sorry just IMO.
That said-just seems the old FP- arguments were usually complaints of not getting headliners over and over either from RD was going to become swamped and/or limited to one headliner FP+ per day. The "late sleepers" were constantly laughed at and called lazy snooze you loose/rs.
But why suddenly when it appears you could FP+ TT and just get a Soarin SB return (maybe even over and over), and also avoid 2 hour SB's were suddenly worried about the late arrivers getting shut out-esp when it sounds like they reopen SB later anyway so they are not shut out.
I don't really care and will never wait an hour (prob 40 minutes) for anything (still worried about a Gringotts attempt one day)-but it seems kinda odd to me. Usually folks are looking for any crack at repeat headliners without the 2 hour SB.