Very true, as I posted previously I agree wholeheartedly, but the thing that shouldn't be over looked about this suggestion is that these bans aren't permanent, there only week long, and thus they could be used simply as a way to help shake up the meta during the dry spells while the new errata are being worked on. Errata take time to get right, to really make sure a card NEEDs to be errata'd and that the new errata your giving it doesn't break the card in a whole new way, but a temporary ban can be issued quickly as it takes no thinking to ban something and even if you ban a few cards that don't need to be banned, they'll be back to being playable the following week.
So really, I actually don't think the idea is a bad one at all, it actually worked pretty fantastically in UR, again I just question if in alteil most players have the resources to throw together a new deck if the key cards to their existing one are banned. Basically locking out players from playing the game for a week is not likely to be looked on kindly
I suppose I have ban bias... after all the last major TCG i played before this was Yu-Gi-Oh, and oh boy was the bans there ridiculous.. granted, they were needed because they made such ridiculous OP cards, but it was a pain nonetheless.
Well, here's another issue I have with the "vote for weekly bans". I dunno about Urban Rivals but this game is very heavily based on matchups. The destruction of one file via banning will lead to another file becoming hard to counter and so on. Thus, I fear that the "vote for weekly bans" will simply devolve into "how much can i manipulate things so that my file is unchallenged for this week". For example, all the gowen players might vote off lycans and undead for a week not because those files are actually OP, but because they are the files hardest for them to beat, being their natural counters. And its certainly possible that gowen players are at least the Folrart majority, so such a scenario is certainly not impossible. And you can see the problems that would stem up from this.
Of course, if they just focus on the actually OP file (DEFS, Primclone) on a consistent basis, then we may as well errata them anyway.
Long story short, in Alteil, this type of system is likely to make more problems than could be solved. Granted, errata is slow, especially now when the game DESPERATELY needs it, but its better than that in my opinion.