I have not watched the video, but am somewhat familiar with Toole, and I think Linkwitz more or less follows Toole's design ideas.
What I have understood from Toole/Linkwitz is that they treat reflections as good and necessary BUT only if the reflected sound and direct sound have the same quality, so that as we humans "stream" the two together it creates a realistic auditory scene.
So both Toole/Linkwitz seem to prefer monopole/dipole type configurations with uniform power response (on-axis and off-axis). This seems very different from designs that stress constant/controlled directivity (like horns), and more direct vs reflected sound.
What you seem to be doing is increasing the direct/reflected ratio, is that correct? Or just minimizing certain problematic reflections? Wondering if the lack of open space behind you in your room is a unique situation you need to manage.
Also, at least with Linkwitz, there is little discussion of IM distortion (he likes long throw drivers for example), need for high sensitivity, dynamic range needed, and so on. Not to mention generally ignoring the "front" end!!