What I was getting at
@Spooner is you can do a crossing like your pic, and not all your engine bay will, or should, get saturated.
People use a water bra also to prevent ingress (never have seen one in the flesh or feel the need to get one), which will happen slowly anyway, but best to not get water literally filling your engine bay.
You were pushing a good berm of water out front there, looked like only up to possibly half the door at most ?
Always looks like more though from inside
I've done fairly still water crossings up to headlights, couple of hundred metres, and after going through popped the bonnet and was surprised how dry it was under there.