Possibly for the same reason that an architect supplies a PLAN to the builders.
Oh, you'd get SOME kind of structure all right (all that building materials would NOT go to waste), but like anything else built by committee.............
I don't think I'm following your point, but I'll take a stab at it. I'm not describing something that a committee might build but rather envisioning a creator as a single entity who is the engineer, architect, supervisor, builder etc.. As to the PLAN, I mentioned an intelligent design was involved.
It was a rhetorical question, in an infinite universe with infinite possibilities there is no reason a creator couldn't intelligently design an evolutionary process. As the old expression goes, a room full of monkeys over a million years .....