"Guides will be useless this year" implies to me that, regardless if the tailored draft classes are ordered or unordered, users will not be able to document the players to crib sheets to create cheat sheets for all online players going forward, which is the biggest concern.
I personally don't really care if the 30 draft classes are completely random or not so long as other users I can't control can no longer game the system, putting me at a disadvantage because I choose to not read said guides. Fairness is my biggest concern.