The door limit on a 747 40kts for operation and 65 kts when opened. When in an aerobridge that should not be a problem, unless the bridge itself has a limit lower then that.
Cargo doors might be a thing, but personally I would like to be at my destination without my immediate luggage instead of somewhere else with my bags.
Regarding slides, I am not aware of a hard limit on those, however there are cases in which wind caused a problem with speeds as low as 28kts.
https://flightsafety.org/ccs/ccs_may-june05.pdf
Boeing states modern slides must be able to deploy (and presumably used) in a 25kts wind from any direction.
Aviation Safety: Evolution of Airplane Interiors
It probably comes down to crew opinions of what is an acceptable risk regarding evacuation and slides.