>>713148130
Have you considered that people like customization? I wouldn't mind IVs effecting size, but a pokemon should not have higher base stats because of its size.
>>713148101
I never understood why they did this, but didn't do the same for its version counterpart Trevenant. In fact I didn't even know these things had size differences until 2 generations after they came out.
>>713152834
Only if you're a coward. If my 30ft-long Wailord wants to nap in the living room, I’m not stopping him. You just have to learn to live dangerously.
>>713150852
Wailord is one of the biggest pokemon, but it isn't in any game that has size differences. One of the biggest pokemon in Scarlet and Violet is Eternatus, but legendary pokemon can't have size variations.
>>713153576
Totem pokemon are a small number of specific pokemon that are sort of wild gym leaders in Alola. Legends: Arceus had alpha pokemon that were substantially larger but Mawile wasn't in Gen IV so there weren't any around. ZA is all about mega evolution though so odds are good that there'll be Mawile there and probably Alpha's again given those were quite popular.