Does it take away from an idol group's legacy if they're not successful as soloists?

yes

if bad solo then bad everything

exile from industry pls

HELL NO!!!!!

If we're talking about all the groups not just idol groups....

Prime Example :- BSB.

No

No. It just means they were successful as a group and not as soloists.

Happens to a lot of people.

no

Nope.

NOOO

No.

I mean, think about the opposite: what if the idol is way more successful as a soloist than in the group? No one pretends that reverse-applies success to the group. So why would an idol's solo endeavor failure cast a shadow on the group's success?

Does Suzy and Hyuna's success count as their groups' achievements?

nope

No.

Quote from 2techs

People usually use group and individual achievement to make the group in general look better

Anyone who does this is dumb, conflating solo support for group support is not correct. Solo stans exist.