Goofyernmost:
You are right--lots of folks out there who wouldn't even think of getting on such a boring ride. Dosen't go 30 MPH, dosen't go upside down, you don't get wet, etc. Fact is, it's almost never "full" and many times when we ride, it's virtually empty.
My guess is that Disney knows that and were it an easy matter to get rid of TTA, they'd do it in a heartbeat. I always fear to read someday that TTA is being closed.