Is not a popular format at all.
A product needs widespread appeal and people playing GLC, Edison in YGO or Similar kitchen table in other games lack it.
Unsupported formats aren't really popular. That's why they are unsupported to begin with, commander got supported when it took off, not before.
Anyway, pokemon and YGO have historically been awful with alternate formats, MTG had some success (so, there is precent that commander had a chance in that game to begin with). Regardless, it only reinforces my original post: almost no one wants trashy promos because they are useful in an unsupported and almost non existant alternate format.