Spanish Army Special Ops Command practices small boat helicopter boarding (?)...

#DYK that units of the 🇪🇦 Army @EjercitoTierra Special Operations Command #MOE are currently deployed in #Afghanistan 🇦🇫 in the framework of @NATO @ResoluteSupport Mission?

What a tough training before their deployment! 💪💪@NATOpress#WeAreNATO 🇪🇦

🎥 @EjercitoTierra pic.twitter.com/QOooZfbEkC

— España en la OTAN (@SpainNATO) December 16, 2019

First.  What is this called when you drive a boat onboard a helicopter like this?

Second.  I've seen this done several times (mostly by Army Rangers for some weird reason) but is it actually practical?

Last.  I've seen it done but never do I seen supporting aircraft like attack helicopters, A-10's etc...Why is that?