So how much ego do you actually lose when you lose a match? Do you actually lose 32 for every loss? Most matches I get no ego at all, and some I only win 1 or 10 ego. Seldom do I even win the max of 32, so if you do lose 32 each and every time for each loss, isn't this a little unfair somehow and unbalanced?

As far as hidden changes go, that seems to be the policy with this game. The devs make changes they know will be received as unfavorable, and hope no one notices, but don't say anything for fear of negative feedback or for some other unknown reason. But so far, at least most of the changes have been noticed, and pretty fast. The change to the rare affection items in the shop was noticed, but at least this was reversed. The change to the equipment was noticed, and now it seems the change to losing mojo in the arena was, too.

I keep seeing posted on the forums, "oh that change was mentioned once on Discord", or "that was discussed briefly on Discord" or even "I THINK that was mentioned on Discord, but I can't remember for sure". Not everyone can or wants to use Discord or can be on it the one time at random when changes might be discussed. When changes are made to a game that people spend money on or have the potential for spending money on, any and all changes to the way the game works should be disclosed in a clear and public manner. Anything else is extremely irresponsible and has the potential for causing players to quit playing the game, especially if it keeps happening over and over again.