Company of Heroes will always be remembered because it was jaw droppingly revolutionary. Company of Heroes 2 just did more of the same. Which doesn't make it worse, only makes it stand out less. However by this time I would say it is much more polished and balanced than vCoH ever was. vCoH will definitely not be remembered 50 years from now for how balanced it was, because it really wasn't.
People for whatever reason can't stop looking at coh1 through pink glasses of nostalgia, it was a complete and utter balance mess at all points in time.
Panzer Elite, vCoH Brits and the release versions of CoH2's USF, OKW and UKF prove that pure asymmetrical balance just doesn't work and generally only leads to toxic and overpowered strategies while also being defenseless in certain other situations. That wasn't really fun for anyone.
Asymmetrical balance works if the tools allow do do the same things, but in different way.
Completely removing certain tools, giving nothing to cover that certain field and forcing a faction to rely on crutch solution that inevitably will be nerfed/removed with little compensation in the future only leads to more problems.
I would say DoW2 did asymmetrical balance right as not a single faction felt like it lacks something completely and even if it did, it was compensated adequately for it. It wasn't perfect, but it was incomparably better then CoH series expansion factions.
Enforcing asymmetrical teching leads to much more problems I believe, especially if that teching is crutching on not allowing access to all factions units as it was the case of old soviets and USF.
Imo, PE had the best teching this series have seen and given how USF and partly OKW teching changed, its only confirmation of that. Not best unit composition, but teching definitely delivered.