As far as Armanz making Sintranos easier for people, isn't that a good thing? I'm all for champs that help everyone complete the PvE part of the game if they're struggling.
Never said it wasn't a good thing for the players - just that I can't see Plarium giving people such an easy way through their endgame content.
Stone skin, that set that adds a few minutes to every arena fight, now mandatory. Awesome. Solid game design.
I should add though, I'm not convinced he'll break the arena. Heard the same about UDK and Monkey, and while they're on 99.99999% of the teams it seems, they can both be dealt with. You'll just need a faster armanz on your own team, or a siphi/rotos combo, or maybe immunity doompreist becomes king, or maybe archmage, or maybe speed meta with a CD champ, or the list goes on... and maybe the answer actually is an unreleased OP p2w champ that hard counters him in 3 months. Lots of options.