Even sideboarding guides dont give you a full picture to why a card is in the sideboard
"Magic The Gathering: Everything You Need To Know About The Commander Format"
Contrary to regular morph, megamorph is one of the most hated mechanics of all time
Additionally, all those special characters will just have a few job levels in their default job with a few skills learned and nothing else, so you not only have to put in a lot of work this late into the game to get all their skills in their special job but also put in a ton of grinding if you want to get them a really good secondary skillset and good reaction/support/movement skills (or in the case of Worker 8 and Byblos, they're monsters so they can never match a well-trained human unit)
Often times there are restrictions on this choice most often non-land
Like most Magic: The Gathering cards, the value of More or Less depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Unstable)