The probe should not be an issue under normal use. Before attempting to lift the bag, push it clear of the probe with your spoon or paddle, and the raise the bag out the opposite side of the kettle.
I have repaired a couple bags where the brewer neglects the above advice, snags the bag on the probe, then enlists a couple friends to try and tug and grunt the bag out of the kettle. Even with a huge grain bill, the bag should easily rise to the top of the wort surface.
A good stir prior to bag removal might not be a bad idea either, so the grain bed is not packed tight around the probe. When I remove a bag, I gather the bag, and slowly lift while letting it drain, and raise the grain ball to the surface, and then slowly hoist it out.
Just be aware that's it's there and steer clear when removing the bag and you shouldn't have a problem. The bags are quite strong and typically only damaged by abuse.
