LLL100 has two problems. First, we don't have the shell. On foot, this star is much slower. Second, if we enter the volcano, then we can't get back out. So we would need to enter the level twice, first for reds, then for 100. Or we collect 100 coins just outside. There are 107 coins outside, but it's very slow, since we would have to kill bullies to get their coins.
Vanish cap is pretty slow, because of castle movement. It takes a while to get there. Then, to get back, we have to enter the level again and exit course.
Granted, my HMC100 is very slow, but a better runner can do it much more quickly.
The strats are different bc. we don't have the shell in LLL. In CCM, we usually combine 100c with the penguin race, which isn't possible in this category. In JRB, 100c+reds would require the ship star, so that is out. In BoB, we don't have the cannon or the blue coin from Koopa. For BBH, we don't have vanish cap. And in SSL, 100c+secrets is not allowed.