Hidenori Fukuoka?

very improbable that it was him, but the fx in the first cut reminds me You Yoshinari

it does have a hint of his style you're right

hope this scene gets credited one day, the Fukuoka guess came from a japanese sakuota on twitter iirc but I don't remember who

This episode aired May 21, 1994, at the same time Yoshinari was in a NC streak with Sailor Moon, Ninku, and Kishin Douji Zenki.

His brother wasn't involved this time but there was Gainax outsourcing with Kenji Irie, Fukuoka and Oishi on the episode. Oishi would be a potential candidate as well except he worked on nearly a dozen episodes of YYH with no similar effects animation. So I'm fairly confident in assuming the first few cuts are NC Yoh Yoshinari, probably even more but there's definitely at least one other person scattered throughout