Kara Zor-El was gone for almost 20 years.
After CoIE, DC had an autistic SUPERMAN IS THE LAST KRYPTONIAN edict, so even though they still wanted to bank on the Supergirl identity, they refused to let her be Superman's cousin, so instead we got this weird alien shapeshifter and an even weirder teenage girl angel. This even affected the DCAU Supergirl.
Eventually, DC finally got their heads of out of their asses and let Kara come back as the one true Supergirl because she's far more interesting and less convoluted.
>>110083547
After CoIE, DC had an autistic SUPERMAN IS THE LAST KRYPTONIAN edict, so even though they still wanted to bank on the Supergirl identity, they refused to let her be Superman's cousin, so instead we got this weird alien shapeshifter and an even weirder teenage girl angel. This even affected the DCAU Supergirl.
Eventually, DC finally got their heads of out of their asses and let Kara come back as the one true Supergirl because she's far more interesting and less convoluted.
>>110083547