I don't see any reason for this to happen. The ride doesn't really need it, it's insanely smooth.
Agreed, just visited BGT in August and Kumba was running great. Plus, it was a walk-on all day (as were Montu and Sheikra), which blew my mind. Gotta love being able to ride three of the best B&Ms ever built with no wait!
Yeah, the crowds are like that about 80% of the time. God, I love my home park.