A tweet by Nobuyoshi Nishimura seems to imply Yuri dancing was something he handled. While, atwiki for Koji Ito seems to imply the mecha cuts are him + the character acting bits at the end.
“ ユリダンス…トロッコの上で踊るユリ…
ああっ、そこも…そこもワタシ…(大汗)”
https://twitter.com/NISHINOB/status/1512259992002654212

“担当カットはC257（エアートロッコ）や、直後のエアートロッコ上でのユリとケイのやり取りなど”
https://w.atwiki.jp/sakuga/pages/1635.html