To be fair, he hosted that AMA because someone on Reddit asked him to host it.
This is absolutely the case, but it does not change the fact it was not (and still hasn't been) included on the Boards.
If someone on Boards had asked him have the AMA, he's probably have done it here. I think it's fine that he did it there.
Funny you should mention that, because following the thread I linked earlier a thread popped up with significant support asking Tryndamere to do a similar AMA on the Boards. No response.
I'm not bitter about this, but it's like Riot isn't even considering the Boards to be a valid medium despite all the work they have put into it. I'm a little concerned.
I don't think it's fine that it wasn't also mirrored or red-tracked here
Agreed, that's the main point that thread was going for.