No offence, but the video was poor support for the rather bold claim "Why WFA is the best thing to happen to COH 2".
The biggest point you made is how Relic listened to the testers. This doesn't change that Relic has proven that they are incompetent when it comes to game design, going all the way back to OF (I believe it's still the same team). A few examples are the completely horrible state the game was in at launch, p2win commanders and more recently the fact that the OKW mechanics had to be completely redesigned.
* The design of the new armies is amazing.
Why are you so convinced of this? You didn't mention any reasons other than that they have new units and the vCoH2 factions felt slightly restrictive.
* The depth of the new armies far surpasses Ostheer and arguably Soviet.
You say that people should play the game more and explore the meta game. Of course new factions are going to bring new units and new tech trees. This says nothing about their worth to the CoH2's gameplay. vCoH2 had the same with the soviets. You said earlier in the video that Ostheer had a boring tech tree, and I would partially agree. But this isn't due to the faction design alone.
The CoH2 OH is very similar to the CoH1 Wehrmacht, yet in CoH1 you have so much more variety in T1 builds, tech choices and the way your doctrinal pick affects this. Almost every single OH player goes 4-ish grens + 1 MG -> T2 -> P4 and/or tiger. The reason why? Many of the other choices are simply not viable in the current meta. I won't go off on a tangent on how all the different wehr builds worked in CoH, but believe me, there was a whole lot more variety.
You're comparing a brand new meta of the WFA where everyone has no idea what they're doing with the one of a game that has been developing for more than a year now. How can you say every option is as viable now as it will be in a year from now? How do you know that these new factions you praise so much will not feel as restrictive once players get better and the meta evolves?