Why TL vs VGIA wasn't on main Valorant channel?

It was a final, but TSM vs FaZe Clan it is? And the korean matches of this morning was too? If there is favoritism it seems fine to me but at least they say it openly.

I believe the Korean stream overlapped and I think there was also a risk of the eu final going over all five maps making it close to the na final in schedule.

Well, for starts, Giants vs TL wouldn't pull in as much viewers as TSM vs FaZe considering the Giants fanbase is not very big and they just came into the spotlight, they aren't a reowned name in Esports or Val, so no one would really care to see them.
And #2 stated it pretty good too, schedule might overlap over the NA GF