The size of the packs are not particularly important to me, but one consequence of that is that, for many of us, that may mean that not all get planted or journaled. For me I might like to join if one or a few strains are of interest, but I would be surprised if I would be likely to grow and journal them all. I would certainly journal any that I did grow, but again, that may not happen in the year that I received them.
You might be better off asking the donors how they feel about the seeds being given out in packages that include lots of seeds including those of the competition. The consequences might be more important to them than to us growers.