It’s bad. I’ve seen so many videos across social media with this technique where it seems like the electrologist is trying to do a vaccine injection rather than electrolysis. You don’t need to push the probe in so hard, no need to break the skin. An opening already exists, so the probe should slide in comfortably in most cases.
If you watch videos from more skilled professionals, you’ll see that the skin doesn’t really dimple when inserting properly. Also notice in the third video that she has to treat multiple hairs multiple times in a row. If you take the time to insert properly, this wouldn’t happen as often.