Дегустация Horn of the Abyss

With the permission of Wicc and an agreement with The_, I was allowed to start with any Castle and hero, for which I am very grateful. There is not much to say about the game itself. The opponent surrendered, citing the loss of part of his army and a lack of desire to continue playing. Things were going well for me: three Cons, two 3s, and one 1, which is not bad for the Castle. Plus, I had two hidden stashes of birds.

Thank you for the game. At some point, I lost interest in continuing. I made a couple of tactical mistakes; I shouldn't have built dragons when I only had one hidden stash. I should have calmly built horses in the Castle and upgraded the elves, of which I had a lot, considering the hidden stash. As a result, on turn 121, I went to clear the Nagabanks to buy more units, and in one of them, having -1 morale, this -1 morale triggered 8 times in a row on the attacking stacks of phoenixes and green dragons, and I completely lost the desire to play.
I've noticed more than once that -1 morale in the HotA is quite often triggered. There doesn't seem to be any additional description in the changelog, i.e., is the chance the same compared to SoD, or did I just get unlucky?