Because Veronia is a Divine Beast, the staff, even though they realized Veronia was forcing Carlott to assist, did not intervene. After all, this is an internal matter among Spirit Beasts where humans should not interfere. Also, they hoped Carlott might suffer a bit to avoid causing trouble for them.
Even though Carlott is a wild Spirit Beast, residing in the reserve, the staff naturally have a duty and responsibility to guide and protect the wild Spirit Beasts. If something happens with the reserve's wild Spirit Beasts, they inevitably have to bear some responsibility.
Not to mention Carlott often bites customers' Spirit Beasts in the Hellfire Mine, so regardless of the situation, compensation and apologies fall on the Hellfire Mine staff.
So now seeing Veronia force Carlott to help with the experiment, the staff were just watching the show.
Of course, this is also because Veronia wasn't going overboard; otherwise, they wouldn't just stand by and watch.
