i wouldnt say its bad sometimes the stop approach can be beneficial to aid in the aversion of an intrusive thought  distractions are still a healthy avenue  sometimes when a disturbing image or sensation or thought i play a small game with the stop approach when the intrusive thought comes i immediately assess and think stop or enough and play a game looking for something interesting in my immediate surroundings like say a nice car or a pretty flower or plant etc etc  you dont always have to be exposed to the disruptive stimuli to get over it there are many pathways you can use to rewire your brain