Corby, they did indeed condemn the attack. But qualified their 'apology' (ha ha) with their monotonous NTDWI meme.
Islamist terrorist attacks, patently, have everything to do with Islam.
I'd have a modicum of respect for the MCB if they admitted that fact and undertook some reforms to stop it happening, instead of opposing every government attempt to clamp down on Islamists as Islamophobia. And, of course, blaming western foreign policy for the attacks fuels the next attack. (which they'll, again, condemn)