There were a few good discussions on this earlier in the year, with interesting information from both the competitor side and the EP side as to the pros and cons of feedback options.
I found the link to one that would be good to peruse (it includes a note from Dan about this topic): Judges’ Comments to Teams - #8 by Foster
I can’t seem to find the one referred to inside that post (I remember it also having good insights from different points of view).