OK, so let's forget what it replaces
or doesn't.
What does it bring to the table? Triple spar wings, Blue Force Tracker, RWR, adaptive countermeasures, software-defined radios, IFF, encrypted comms .... all the stuff needed to do clever and sneaky peaky things over hostile terrain (not just hostile physical terrain).
I like the sound of cheap & cheerful old busses like Iroquois and Caribou ... but I also like the sound of the Spartan. And if others refuse to budge intellectually than so can I: I hope my diggers get to push sh1t out the back of them - Ronnie Loadie Mafia - and progress - be damned