I think he is saying that putting range on affliction spells is ultimately pointless....but putting it on affliction and NOT putting into destro is just uber fail.
I also agree that spec is flawed, the points are better spent in Nightfall over Grim Reach in affliction......its a matter of personal taste of imp CoA over imp Drain Soul.....personally I go imp CoA. threat is not an issue on bosses (with a competent tank)....and to take it for reduced threat on trash is just daft imo as even if you pull aggro...... and every AOE pack I do as CoS is so OP....the trash is dead before they even get to you.
Taking Molten Core as affliction is just really silly tbh...if we had other points then yeah why not since you cast immo, but to not max out Imp SB when that is going to be about 25-30 of your Dmg is just lol..
Cata....again depend on your personal hit rating so no right or wrong way here, best to get as much hit as possible......I aim for 280-290 and put one point here.
Simple reason is that over the course of an entire raid night I miss about 2 bolts all night...so your return for maxing this out is just not worth it really.
EJ is correct that Corruption as the 3rd glyph is better DPS on paper.....but in the real world its much better having a stable rotation, and if you mess up a few times because your rotation is not good you will lose more dps overall than the odd instant SB will give you back.....go CoA it will really help you!