Engine High Vibration Checklist does not tell you to land in any case. The final note in case you cannot keep the vibrations below 4 units reads:
If the VIB indication does not decrease when the thrust lever is retarded, check other engine indications. If other engine indications are normal, no further action is needed.
Not even a pointer to the Engine Failure or Shutdown list, although it would be a normal consideration during FORDEC or DODAR, whatever you use.