I would like to see them add a reason to not go for light vehicles. Right now every faction goes for light vehicle rush, it would be good if there was a reason to quick tech tanks, which would still come out later and prolong infantry play.
And why do you think it would be a good idea?
No reason to go for lights does NOT promote infantry focus, it promotes medium rush, because you want to get an edge over opponent at best.
At worse, it promotes strats like volks or maxim spam even more, there is also an economical aspect, where UKF and USF simply can NOT commit more to infantry then they do now as it breaks completely their menpower economy.
I don't think there is anything wrong with game pace right now, pretty much all armies can focus on the infantry more in early game to a point, but making lights less attractive will achieve nothing but med armor rush.
And last but not least, without lights, USF is fucked up, UKF is fucked up, OKW is stripped from at least 2 BOs and soviets that don't spam maxims are so fucked up that its not even funny.
If someone is struggling vs lights, then perhaps it would be a good idea to anticipate and get some AT out.