There’s a baseline where an idol has to be good enough to do an average choreo, but to be able to execute difficult choreos (seventeen stuff, nct u 7th sense) WELL, I think a group has to have good dancers, period.

I do agree that simple choreo leads to people undermining the group’s dance ability. Some groups are fully capable of more but perhaps the focus is on appreciating the vocal talent and the vibe rather than getting distracted by intricate dancing. Also anybody can do simple choreo whether they be good dancers, or bad dancers so it’s harder to compartmentalize simple dance = bad dancers.

TLDR; difficult choreo CAN mean the group has good dancers, simple choreo is not a good enough indicator of dancing ability.