Yes. It starts out as weak and it only gets weaker as the game goes on. +1 to an attribute is a lot smaller in D:OS 2 than it was in D:OS 1, and you also get a lot more attribute points in D:OS 2. It is nowhere nearly as strong enough to warrant a 6 turn cooldown. Apparently it only goes up to +1 STR/INT/FIN and +4 CON by level 22, which is bad.
I recommend that it get at least +1 to all every 5 levels, capping at +5, for +25% to STR/FIN/INT and +35% to CON. Heck, the bonus to CON alone would make it worthwhile.
Also, Dwarves Petrifying Touch is bad for costing 2 AP - you can always find something better to do with 2 AP than that. It would be better if it was 1 AP. Hell, you could even get rid of the damage and use it on allies to clear and block some enemy status effects.
