English (as I'm aware) isn't mysterys first language, and there hance been a few posts already as to the difference in commentary style between our US players and our European counterparts. I am certain that he meant no offence by his remark. His meta discusses things in a much more frank manner. Its more direct true, but local folks from across the pond tend to take no offence to blunt commentary like that as they know it's simply an assessment, not an indictment of being a bad person or bad player. Good players make bad plays from time to time as well, doesn't make them bad players.
And not for nothing, hasn't Mystery won many tournament's both local and global? He's kind of looking at this from the top of the heap so to speak. Its an undeniable fact that he usually knows what he's talking about.
Just my 2 mana on the subject.
Ps. As for the arena vs academy expansions, i say keep the academy stuff coming! We have gotten some amazing cards out of the academy sets so far, and they work great in arena!
Cards like glancing blow, dodge, cure, mend, firestream, wispwillow amulet, leather chausses, kajarah, 2nd chance, divine revearsal, sanguine hunter, white cloak knight, asyras blessing, sanguine thirst, disperse, crumble, arcane ward and a ton of others have made arguably more of a impact on arena than they have in academy! Its not stopping either, the new quick cast creatures were getting from forcemaster academy? Yes please! Yes a new arena mage woulde be nice, but how many sirens do you see nowadays? Nobody's figured her out yet. What're'ya gonna do with another mage set? The meta just changed twice in rapid succession, once for pvs, and again for lost grimoire, and even to a lesser extent when priestess and warlock academy came out. There's so much meat to this game and so much more coming all the time. Give academy a chance. Take game commentary wth a grain of salt as this game is global amd not everyone hears things thr same way. This game is amazing, this meta is amazing, let's as jyst take a breath and relax no?