i encounter it every day so…
plus, many people would use what you call " useless " vehicle.
because people can, and will use it.
just because you don’t see the reason behind it, doesn’t mean shouldn’t exist.
i don’t see any problem to begin with, so i hardly doubt the addition of haltracks will " worsen it ".
literally not that hard to kill it’s gunner.
or use any anti tank weapon.
except, the halftrack can be moved.
hence it works 
i’ll never stop to repeat my self,
using it to get enginner construction points when those end, will be beneficial for everyone, same for the ammo truck/halftrack/car, or medical one.
it’s support role is vital. and enhance by creating multiple scenarios by it.
instead of being forced to kill your squad and lose vital time/lives.
enlisted proclaims to be realistic?
then we shall make one by adressing it’s major problems.
( by any means might not solve the issue completely, but it will mitigate it. )
well, it takes “”“skill”"" to avoid planes.
and if the planes kills my crew, he did his job and he deserves it.
my fault that i didn’t avoided.