Someone got lucky and triggered morale five times in a row...

Heh, I might get that lucky with the traffic light in every battle, imagine how lucky I am... :D

P.s. With my behavior, I emphasize the unseriousness and artificiality of the problem being discussed...

Unfortunately, this is not an artificial problem, because you yourself say:

Because the main task of the host is to ensure that all players participating in a specific tournament have equal opportunities.

and if you allow players to play either with or without a patch, then this main task will not be solved, because the one who plays without a patch has the opportunity to generate morale (luck, unicorn blindness, double damage from Death Knights, etc.) in any place convenient for him. The one who uses the patch is deprived of this.
Therefore, a decision must be made: either with a patch or without it. There is no third option yet.