Well I'm sure profit is what drives K&C, but I don't mind the vehicles being a slightly smaller scale for space reasons. K&C does make nice large interesting figures so I'd prefer they keep that same style/size. 1/30 is a good minimum scale for large AFVs & I think it's a good idea to go 1/28 on small items like artillery-it's a judgment call. In the K&C brand, the figures have always carried the story for me. The vehicles have been supplementary material to spice up the story.
In FL, the brand where figs & vehicles are scaled correctly, I feel the figs & vehicles are intertwined. Both are necessary for the story (to me) due to the small size of the figs. The FL figs photograph well with macro lens as you can see on the board, but how often to I stare at my figs with my nose to them? From a comfortable viewing distance, K&C figs seem sized in the sweet spot to carry the story solo. To have a Jagdtiger sized 1/28 would detract from the figs imo.