All that you're explaining here is how the Kubel is a nice early to mid game unit (when the IR HT doesn't exist) and how the IR HT will be a way better late game recon tool when all that's needed is clear vision of a certain area of the map, like a VP area. Not how one is better than the other.
my question, is it worth the cost ? 10 fuel and 200+ mp for a unit that has half the feature of the kubel which cost less and comes eralier
and again the vision advantage is only in open field
im not saying revert the changes just make the unit worth it