OMG really annoying that a law firm will only offer feedback post AC by written form and not a call. Do a few firms do this or is it only the firm I had an interview with. I thought they do a feedback call post AC rejections.
I haven't heard of this before but I would say that this might not be too bad;
- you have the feedback to hand to refer back to instead of being reliant on scribbling things down during the call
- you can (hopefully) get a pretty clear idea of what they are looking for in the AC/how it is scored. This is likely to be similar for many firms so you should be able to see where you can improve in the future.
I think if the written feedback raises any questions, they might be willing to clarify in a follow-up email as well if you felt comfortable asking. At least you're hopefully getting some useful written points even if not a full feedback call (which isn't always even that helpful depending on the firm).