I agree with the ticket mentality, to me an "E=Ticket" is totally based on your own opinion to me its theming and the immersiveness the ride has such as Splash, TOT, BTMM. I would even consider the 7 Dwarf mine coaster to be an "E-Ticket". but I'm not sure you can equate an attractions line length to popularity when there are barely a handful of rides to begin with. The line at the DMV is long, and I doubt anyone would agree its "popular". If the Great Movie Ride has huge lines is it because its on everyone's bucket-list or because they have nothing better to do while they wait for a fastpass or fantasmic.
I personally love TSMM, I wish there was a way to board without climbing those dang steps, and I love it because it allows me to connect with my daughter and son (and to totally destroy their scores), but once everything else opens the lines will be drastically shorter. TSL will be a great addition to the park and will eat up a lot of crowds, It wouldve been nice for them to add a Toy Story theater where the toys put on a show similar to what the nemo musical is at AK.