throwaway48476 parent
There's a metal nib on the switch and switch housing preventing it from being bumped. There's also a spring holding it down so it can't bounce up. The distance and required force makes switching them at the same time impossible, thus the 1 second difference. This was absolutely an intentional act.
Lookit the damn(ing) pictures:
https://www.xuefeiji.org/public/uploads/weixin_mpimgs/e3/e36...
One can easily switch them with two fingers at the same time. I tried (with similar switches.): Works. If the locking mechanism fails, even unintentionally. Getting loose, wristworn jewlery snatched and then pull: Works.
My question to Boeing is: Why did you cover the neighbouring (stabilizer cut-off, IIRC) switches with red springloaded flip-covers, but not the fuel cut-off switches?