https://files.catbox.moe/pgx36o.mp4
Yeah from the looks of it, it's detecting the left and right throttles as axis inputs. It must have ignored them for most of my playthrough but then there was an input jitter or something and it picked the hotas up, since it wasn't an issue until level 5 or so.
It's not a big deal and I don't think it's something you have to worry about. I encounter this problem with various games that have controller support, though Noita had a specific option to disable gamepad input altogether so it'd be nice to have but again not a priority especially at this stage in development.