Not only do I love the line, but it has gotten insane. It's like you can't even discuss or speculate on upcoming films anymore. I get that some, like Tom, want to go in completely clean. I can appreciate that, even if I fall far on the opposite side of the spectrum. I even try and be considerate tot he spoiler averse.
But the phobia is real, and those that suffer from it would do the rest of us well to stuff it, and just avoid the spoilers yourself.
Hence why I find the fact the title is definitively plural interesting. Certainly Luke, almost certainly Rey, and possibly Kylo. Maybe others even. It doesn't tell us much other than the (already pretty rock solid speculation) fact Rey will undergo some training.