OK, you stopped them at Riga. I hope the envelopment penalty goes up a bit, I find -10% rather small for such an important feat, when -20% is given to dig in.
Are there many areas of urban terrain? Riga should be one I believe...
I guess the envelopment penalty was for attacking from three provinces, would be more if you go in from four or five.
And I am perfectly confident more Urban areas will be added. As I wrote in my preview, with smaller provinces they just can't have Leningrad, Stalingrad, Moscow, Kiev and NY not being urban terrain.
I'm missing statistics, even the most basic ones from the top of the screen, which you ommit carefuly in your screenshots
As my screenshots are taken in rather quick succesion I cut out the interesting bit which does not include the top bar most of the time