Tucking can be beneficial though cant it? Bringing the bike up closer to your body means that you are bring the bike higher. Aslong as the tuck isnt the rider going towards the bike but the rider bring the bike towards their body then its beneficial.
Yeah, I agree about different standards meaning tucking at different heights. Someone might have to give 100% to sidehop say 35" so they need to tuck, whereas CLS or Tunni really dont do they! (until they are at 100%)