There is a noticeable bias towards the cards people favor versus the ones they don't like. The Exile faction has cards that are random in nature and a few players are in an uproar because instead of being able to make their decks formulaic it forces them to adapt to situations that they did not account for. It is the differences between tactics and strategy. One is good for planning and one is being able to adjust to an unfavorable situation. Tibat, Wholesale, etc., are fine. They're not annoying, They're not broken, it is a novel play style that some veteran don't want to adapt to. It is beatable consistently if you try just a little.
However, we have on the other hand things that are blatantly problematic. Sol being absurdly strong, Precautionary Measures, Uncosted flying (Angel faction) as another user stated, lack of flying defense and other painfully obvious imbalances. Yet we don't have any "What about those Overseers" threads with "research" videos of how broken they are.
The reason is because the players who complain about Tibat will shamelessly use Sol and other cards that are much stronger than Tibat can ever hope to be. Yet due to ceaseless whining he is getting nerfed while the real problem cards are remaining untouched.
We had about half a dozen Overseer op threads with the launch of Ascension, you missed out it was pretty fun. There are two bad match ups against AoE Stall decks, Lanstead (which some people debate) and Omnitron. The Overseers also have two bad match ups from my experience. Those are Warpath any purity and any deck running Yuanshi/Yuanshi's Wrath. I also want to say Genesis would be pretty bad for them with Tinkerer and scouting drone, Defense Golem or any of the many ways they can grant flying. Unfortunately I have no experience with that match up so thats just speculation. One big difference in those bad match ups is that as far as I know Omnitron decks are played almost solely to combat AoE spam while all those other decks are played by choice (I'm not saying people can't or don't like playing Omnitron decks but if you are playing something to counter something else it isn't about fun anymore).
Plenty of people have complained about Precautionary Measures and yeah it can get absurd I have no argument here. I do however disagree with uncosted flying when the faction as a whole has low stats and high morale as a cost for their access to flying. As for Sol versus Tibat. Tibat does his thing on coming in to play with no possible interaction other than a Zunshen if the other player has priority while Sol has a chance to be hit with all kinds of hard and soft removal. I'd say Sol is still stronger but they aren't that far apart. On the topic of Sol does anybody know if controlled temporal anomaly gets rid of ascended or not?
As for Wholesale Slaughter while the randomness might be a big thing to some people as far as I'm concerned it is the sacrifice thing that is a big deal. There are a few doesn't die to removal cards and as far as I know this sacs every one of them. This does bring up something that really annoys me. I've seen Paladin of the Flame Dawn die to Calamity and Titan of the New World die to Oblivion. On the question of Sword that can cut anything and Shield that can't be cut it seems like Lightmare has pretty firmly come down on the side of sword. In a game that gets a bit of flack for being too control oriented with very little viable big creatures I think doesn't die to removal creatures being casually brushed away is kind of a big issue.
On the topic of Mega Unit 02 I've never got to try it but I think
demonic corruption gets rid of the original type leaving them only a demon so it should stop Lanstead from being able to use him.