Rev bombing to get attention of other drivers

I see this on YouTube all the time and I don’t really get it imo, for a couple reasons. I know the intent is there to grab attention however 1. Removes your ability of having quick access to front brake 2. If you need to speed to get out of situation, having to wait for the revs to go down a tad so you can put the clutch back out 3. Horns are the universal signal for hey watch out!!! While revving many motorists may not pick up onI’m sure there’s many more benefits I’m missing to using horn instead of throttle. Do some of you guys do this? And why? Discussion via /r/motorcycles https://www.reddit.com/r/motorcycles/comments/eh30uo/rev_bombing_to_get_attention_of_other_drivers/?utm_source=ifttt