No the TC seems to be talking about the Nicktoons version exclusively and not Kai as a whole. See he's saying why "Nicktoons" is cutting the buu saga and not why Kai does not have a Buu Saga. those are two different questions.
Anyway like Radiant said Nicktoons is not cutting the Buu saga they only have the rights to DBZ Kai which has no Buu Saga. I guess Nicktoons does not want to get the rights to air Dragon Ball Z just for one Saga.
Really Nicktoons is not to blame for kai not having a Buu Saga.