Russia started convoying some of those vessels, especially with more advanced operation bases than cable cuts [1].
They won't be able to seize those without opening fire.
https://ioplus.nl/en/posts/how-seven-students-unmasked-russi...
That is...disturbing.
That's fine. Let Russia escort ships that then break cables. It'll make it more obvious it's deliberate, and provide a reason for blockade and confrontation.