I wonder why she hasn't caught on...
This, and her refusal to cleanly concede to Kemp in 2018, are probably two of the most important factors as to why she's failing this year. Another would be her massive ego, as she clearly views Georgia as merely a stepping stone for higher office - namely, the Presidency. Seeing her lose again will be satisfying.
The photo was bad but I don't it hurt nearly as bad as her failing to concede in 2018 or her pushing so hard for Biden's VP slot. Her failure to concede has supplied every Trump apologist with a valid "what about" comeback (the two are not on the same level but still) . The VP push was a bad look considering the highest office she has ever held is a state legislator.