They claim that a Chinese company owns Larian. This is untrue. They don't even own a plurality. They later claim that Tencent would finance Larian buying D&D, but a non-controlling partner fully financing a corporate takeover is rare.
They were not first, which is what "Breaking" a story is.
And you are right. They are not journalists. They do not follow a code of ethics.
The idea is that a company would by the D&D IP for books and video games and leave DDB and the VTT with WOTC. Then, because "Larian knows more about D&D than WOTC does" they could do a better job of maintaining it. At about the 10 minute mark was that "It's not very well known but there's a little thing is that Larian is actually secretly owned ... 30% is owned by Tencent". I heard that wrong the first time, it's easy to miss if you're only sort of paying attention. In addition the way they state it it's like it's a super secret conspiracy not something that anyone could find out since Larian is publicly traded.
This is all obvious because they spent a lot of time and effort developing the game (which, honestly is a pretty amazing commitment) because Tencent is bankrolling them. Which, is kind of how stock in a publicly traded company works, the other 70ish% of stock held by others as an investment also bankrolled the game but that's not how he makes it sound. Listening to the video, it sounds like Tencent is the sole financial support for the company, not just a minority stock holder.
The whole thing is based off of a conversation people would have over beers and then spun into some grand theory of this multibillion dollar conglomerate funding Larian so that they could easily afford to buy parts of D&D backed up by misleading statements. I mean, yes Marvel sold off the rights to some characters, just like TSR sold off the rights to movies to Sweatpea back in the day. Someone could come in to buy the D&D books and video game rights if they wanted, I just don't see any reason it would be Tencent by way of Larian.