Long story short, alot of Korean collectors have said this about the monster ball holos in VmaxClimax: Likely an error, since the early production did not have them, but the last few batches of reprints have them
They make popular sets highly accessible, allowing casual collectors to finish missing entries
The post-2020 market was primed with a larger, more educated collector base and a significant amount of capital that never left the hobby
The thing that kept it balanced was that it was on very few creatures and only triggered once
I'm not sure why the rules committee didn't just decide that the command zone and the role of commander is a worthwhile stand-in for the companion mechanic, but the two do work differently
Its one of the old-school haymakers of a bygone era of Magic, and its finally getting a chance to step back into the ring with Modern Horizons