Strong magnetic fields do help new players with their first dockings, but it takes little practice to reach the level where it's just annoying. It causes the vessel (parent and target) to wobble around if their masses aren't large enough, it results in different roll so if you want symmetry and proper solar panel alignment, you're gonna have a bad day with constant undocking and docking. This is particularly important with larger lateral structures.
Only perfectly aligned vessels will approach and immediately snap together so the whole experience is like uncanny valley of the robotics - n00bs are ok with it and extreme pros are ok with it.
I'd reduce it to a more comfortable level. It would barely impact the mentioned player groups, but it would make docking easier for the rest.
P.S.: It appears to me the force is identical for all ports which makes situations with the Junior port quite annoying.