Constellar
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I can't say anything about the other changes, but many of the changes I've already mentioned negatively affect the balance. In general, this mod can be called "tournament-ready" with a stretch; there's too much arbitrary content and changes based on the subjective viewpoint of the creators (excessive bias towards defensive gameplay for humans, adding heroes from campaigns, removing key abilities of some creatures, excessively strong buffs/nerfs, too radical a change to luck, artificially limiting development options, etc.). But there are also good changes. Overall, the expression "my tournament, my rules" can be applied here. There is a certain balance in this mod (but whether it is better than in the original game is a question).
Couldn't have said it better myself.
It's somewhat ironic that in the reviews on the Heroes for Fan channel, the author of TBM often criticized the creators of other mods for their arbitrary content and imbalance, and did so in a rather nasty and mocking way. Apparently, he eventually decided to show his vision of balance, but the result is something mediocre. A very questionable balance with a focus on creativity.