Makes it easier than having to stop for a few seconds and switch hoes to sell. When a booster is active, every second counts.
exta, myself, and i’d assume many others want the sellall feature useable in off hand because when using farms without pf hoppers it would be a lot easier than switching back and forth from main hoe to dragon claw. that’s regardless of if there is a booster going or not, you could just be farming your stuff regularly for money to rank up or just bc