You enter the correction and let it ride....doing what it does....swing like a pendulum.
The magnetic poles are moving and like you say, they may move back.
The problem comes if the movement causes a weakness in the Earth’s protective magnetic field.
You remember the recent and huge TRANSFORMER EXPLOSION in New York. Did you know that this has been happening all over the world lately ?
I have been in some strange deviation areas, for instance, about 120nm E off Cape Henry. Truly mysterious stuff.