Voyager had become a travesty by the time they got assimilated by the Borg and just shrugged it off. It's like the intentionally wanted to insult TNG's approach to the Borg.
Not one episode has a lasting repercussion for the characters. Janeway kills Tuvix, and despite his claims that she will have to live with it, the incident is never heard of again. Random crew members who have always been supposed to be great friends with the main characters appear out of nowhere and then disappear again completely. Then they pull shit like that Borg assimilation mentioned above. Picard got ass raped by the Borg physically and mentally and couldn't handle it for years, and Janeway & Co just shrug it off and make jokes about it, and then we never hear of it ever again. Like it was nothing to get your whole body augmented with mechanical implants and then again removed.