I’m actually starting to think that these comparison videos are not very good examples to show how much better circling is, because the situations aren’t at all the same:
In the first video, the player is not mobbing the same way as the player in the second video. The first video also appears to be using Cannon Shot, not Cannon Blast (that 5 second CD is noticeable) which is significantly weaker than Cannon Blast (150% atk + 3300 vs 300% atk + 4713). Most importantly, the players in each video are both fighting two entirely different sets of monsters. There’s no consistency between the tests to really exemplify the difference between having circling and not having it.
In conclusion, these two videos are not really comparable, and not accurate depictions of the difference between using circling and not using it.