Mage SM cath farming

Hello people,
I'd like to know whether farming in SM cathedral might be worth it? I've seen a video once where a mage just run through, dodged the mobs outside of the cathedral itself and just run straight to Mograine and pulled. Now the entire cathedral came up to him and he iceblocked till everybody and their mom was smacking at him. Then he icenovaed and just bombed everything down. Would you guys consider this a good farming strategy or does it lack someting?
I'd like to know whether farming in SM cathedral might be worth it? I've seen a video once where a mage just run through, dodged the mobs outside of the cathedral itself and just run straight to Mograine and pulled. Now the entire cathedral came up to him and he iceblocked till everybody and their mom was smacking at him. Then he icenovaed and just bombed everything down. Would you guys consider this a good farming strategy or does it lack someting?