In First contact it takes his FRICKIN Security code.
If it's a recognized Starfleet security password verified with his biometric and personnel data, then what's the problem? People temporarily transfer between ships all the time for various reasons, do you want them to be stuck not being able to use key systems in case of an emergency?
If anything, I'd say the bigger bummer is poor Daniels getting bumped from his spot the moment Worf walks onto the bridge. He probably worked his ass off for that position, and then he gets benched without a word and later sent off on a suicide mission against the Borg by Picard. He must feel like he got rejected the night of the prom.