Introduction of Haven in the Stronghold vs. Dungeon tournaments.

Pointless chatter)) Fun, yes, you can play with OH. But closer to the final of some tournament...

For fans of OH, it's great; the lobby itself is great, even without OH. Just the one-click restart is worth something!
But for tournaments, I think it's not very suitable, even if you ignore the paid subscription and the added difficulty for newbies and slowpokes.
There are bugs, from minor ones (like the opponent's movement bar disappearing) to critical ones (strange crashes, followed by replaying turns). Moreover, it seems that they are only increasing with updates. I've already played over 200 fun games in the lobby and encountered bugs that I couldn't even have imagined before.
This also changes the gameplay (tactical games on restarts with the tavern are becoming a thing of the past,
when they restart with overpowered heroes like Galtran, or, conversely, put him on display with a bad draw,
provoking the opponent to restart).
There are also glitches where blue attacks a red hero, and the latter doesn't even notice it because, on that turn, he's already in a different place.
There's also a situation where blue can't defend against a red attack because he simply can't physically review the opponent's previous turn.
Thus, OH can only be used in serious games within the limits of a possible restart after a match.

And this is just the first thing that comes to mind; if you think about it, you can find many more reasons.