cherrybim-
Thank you for filling that in.
So basically you’re saying that according to Rabbi Ribiat, a psik raisha delo nicha lai (which is what the sparking ignitor when shutting a burner is) is not a problem, and therefore even if one couldn’t shut the gas quickly enough to avoid activating the ignitor, it would not be a problem in itself (putting aside any issues of lowering/snuffing the flame itself on Yom Tov).
That sounds like a logical deduction, based on his psik raisha explanation of the gas control on Shabbos.