Striker Braun Stroman coaching change

Was there any information about this change? For those who are unaware I will copy screenshots. I can't speak for anyone else but for me he was very helpful since I do not have any other yellow gem coaches and his ability was maxed at 5SS. Now this change is requiring me to move him to 5 gold for the previous benefit that was at 5 silver. (25% yellow gem damage) I noticed this change last night when I was setting up for feud.

I did see the Afa change and the same thing happened where the previous benefits were raised much higher. Any information on the Braun change or anything else (Except Afa) would be appreciated.

-DC1

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After: