The only consideration about that is USF only has Jackson, so of course, you build some to counter Pz4 but doctrinal M10 is much better in that matter.
Imo that's the main flaw of WFA and Brits. They lack of 1 tier compare to Ostheer/Soviet faction. For example Soviet has su76 a light tank destroyer design to fight with medium/light armor and su85 to deal with better, stronger axis vehicules. Variety which gives much more possibilities.
USF has only one tank destroyer. It's hard to make a unit which will be good vs heavies and more mobile medium vehicules and not being opieOP.
Mistake in designing the factions