They should be okay. The tops still have life and the buds are still pushing pistils, so I wouldn't try to correct them again right now. Bloom boosters can spike the root zone pretty fast, then the flush swings it the other way, so the plant just needs a few boring days to settle.

Let the pot dry back normally, then water light and in range. No more booster for a bit, and don't strip the stressed leaves unless they're fully dead. The damaged fans won't really recover, but if the new pistils keep coming and the sugar leaves don't keep burning, they'll finish. Might lose a little momentum, but they don't look ruined.