we don't like this kind of feedback in a workshop

[milo]

I don't think you need any technical knowledge at all to be able to comment about specifically what works or doesn't for you - indeed it may be easier without it.

True... but a little more technical knowledge wouldn't hurt me

I don't think it hurts anyone but i do think commenting can be easier without it.  some of the best poems I have read on this site had enough technical issues to bog down the critique forever.  Thing is, technical issues can be fixed with a few editing passes - a dull poem really can't.