Ally and Summoner support bonuses in Arena Defense

So, we know that the bonuses work in arena offense and you can see who is affected by the bonus and you can also check the details on your hero screen.

The question is, what about the defending team? I noticed no indication of bonuses on my opponent's teams and I did three full runs a while ago just to test. Have you noticed that the defending team has those bonuses? Because as usual, the game is extremely unclear about some of its mechanics.