This is actually a very useful tool in the hands of management if/when the market corrects.
BDCs are structured to go to share issuances for capital. If you tell them they cannot get extra capital if share price decreases below NAV, you lock them out of capital when Mr. Market does a nosedive.
Why handcuff management so they cannot make good investments [sell AINV shares at bargain basement prices and snap up absolute steals in their world] when the Market collapses?
I don't get the animosity here. If you don't trust management to make good decisions with a tool like this, maybe you should invest in another company?