For the last… few… seasons, it’s been extremely noticeable that the rules & bonuses have been tailored specifically to a certain hero or group of heroes new to the game.
This season, every single rule and bonus directly benefits Zeus - the hero that almost all C1 arena teams this week have had anyway.
Was he not strong enough? Arena & Coli rules and bonuses should be varied and promote a range of strategic and clever hero choices, not just “upgrade the latest popular hero or lose”.