This is a very good card, a very good control card imo. However to use the words of the group at large any aggressive opponent will wreck this card. There are plenty of cards which deal with this card very easily.
The main questions are this, is it every book? So honestly is it really any more of a threat than any other?
Sure it turns off Melee buffs, but honestly it will just direct play until it can be removed. This game is a game of problems and solutions, it is about using the spellbook points you have to make the best book for your favourite mage. Any player worth their salt will either take Altar of Ifernia on the chin and play around it or obliterate it with the hatred it deserves, once it is in play.
So I reiterate my question why is this such a problem, and let me answer that too; it is not. You expect these kinds of play during book building and plan accordingly. "I want to do A, I use B and C cards to accomplish this. D and E Mages/cards give these roads to victory problems, do I chalk these up as bad match ups, or can I use F and G cards to counter these problems?" F and G can be Acid Ball, rust, dissolve, the list goes on.
It is also a well known fact in Customisable games that a pool of players will usually have a (group of) best player(s), that(/those) player(s) will win more games than others using a range of books/decks, usually from the tier 1 pool. Players within the group with them will either stay at the same level of play or get better as they strive to beat the best player(s), competition breeds competitive play at all levels; this ranges from causal to tournament level. This is the same with the new players, it is very rarely that they leave said group due to always losing, but normally they fit right in because it is not just about the game, but the people and the experiences made.
If anything this is a weaker example than the swarm hate that is in nearly every book. However this does not drive people from the game, just they adapt.