Why did Kpop Evolution leave out TVXQ, bigbang, and snsd from their episodes?

I guess SM doesn't want to give JYJ or Jess any promo?

What’s that

Also, Wonder Girls debuted earlier if I reckon correctly (than SNSD)

Quote from 2techs

A kpop series on youtube about its history

Who made it?

“Kang Daniel, BTS, Blackpink“

That alone shows you how much value you should give these “documentaries“

Quote from Afriyieau1

Who made it?

I think it's made in collaboration with SM so....

From looking at the episodes, SNSD and TVXQ members are in the documentary, in episode 2 and 5.

Bigbang isn't SM, so I guess they didn't really care about leaving them out. There is no interview of BP or BTS members and I really don't feel like checking what passive-agressive bullshit SM has to say about them lol