I don't disagree that Alfred Lion was very important in the shaping of the sound, but I see it as a partnership, and he saw in RVG a very important component of the sound. Saying Lion was "the sole architect" is over-simplifying the situation. He was a large part of the reason they sounded this way, but he was not "the sole architect." Sorry, you haven't convinced me, which is just fine, I'm very happy that we both have different opinions.
There are differences between the sound of the recordings RVG made for different labels (I really love some of the engineering for Savoy, the horns sound HUGE). . .and Alfred Lion was instrumental in the distinguished sound of Blue Note's dates, but he needed his partner RVG to collaborate with for that sound.
If you don't see it that way, vive la difference.