True, but IRs work this way also. I can try a shared Helix preset that uses IRs and I must 1) have the IR and 2) know where to put it, which preset IR number slot to I have to use. Both requiring additional work on my part and possibly requiring a purchase. But sometimes it's worth that extra work if I like the shared Helix preset. Therefore there's precedence for having information in a Helix preset that may not be sufficient to use it "as is". So to me, that's not an excuse to not provide this option.
In fact, I can resolve this issue. Design this so that when you select a PC+ preset rather than the individual parameters in Helix Digital Output, Helix shows what parameters make up the preset. Boom.