Because if they have stabilisers extended when hitting against the side of a loaded Sola TS that could rip open a fairly large hole in the side below waterline. The damages caused by the anchor appears to be all above waterline at normal draft and even keel.
Maybe you remember the Hurtigrute Nordlys that had a fire in the engine room but started to flood and nobody could figure out why and how to stop it?
When the Dutch Salvage master got on the scene he quickly found the cause. It showed up that she had had the stabilisers extended and nobody remembered.
When she was brought roughly alongside the wharf in Aalesund the stabilising fin hit the wharf, causing substantial flooding into the cargo hold and car deck.
Here she is, with a substantial list, while they were searching for the leak:
