You're absolutely right; I have done a fair amount of tactical learning and training and have been shooting since 1st grade or so in 1967 (sic). Tasers can be ignored by many people and defeated by thick clothing and perhaps leather jackets.
If you desperately need to stop someone ASAP, rubber bullets are subpar unless they approach lethal energies, for obvious reasons, and a lot of school teacher types wouldn't be able to wield such weapons effectively. Your guess is correct.
