Why “Sad”, I think it’s great.
Why spend hours trouble shooting connections, wiring, power supply when there are more time/cost efficient way.

I recently completed online training for sl2100 on ntac. All you get is 16 videos with how to instructions (click, click, upload, reset....). No explanations on what’s going on behind the scenes. I guess the only way to learn now, is to stay on top of forums and YouTube videos