I think he makes some good points, however I don't really care whether other people use expensive libraries or the London Philharmonic. I'm here because its always fun to participate and it's a very good experience if you want to grow as a musician (just this round I picked up on some new stuff). I don't really care about winning. But I understand how others may be more competitive about it.
If I were into this for actually winning, I would think about the implications of allowing outside members to help. The rules serve as limitations to keep the competition sort of leveled and to help you do stuff you wouldn't normally do. Without rules or limitations nothing can really stop me from doing a barebones arrangement, handing it over to say Thomas who's much better at arranging than me to make it epic, then hand it over to blind to get amazing production values on it, and then paying for the final mastering.
There is actually something I want to do for this competition but I won't be able to because it requires a female vocalist. Without rules I would tell Mae or even ask Injury to do it, but because I can't I'll have to think out of the box if I want to do this idea.
tldr: If I was actually competing I would say its good to have these limitations. But since I'm more into this for personal growth, I'm fine either way.
EDIT: well, nevermind now! hmm time to do the preparations for that idea of mine...