Thanks for taking the time to provide your feedback
Morelock . It's funny because after I posted this, I messaged my coach (John Croom) to get his perspective, which is consistent with your response.
I've since moved the stem up 1 cm and the saddle rearward only about 5mm (it's already at the limit on the rails/seatpost). My concern is going up in the front will reduce the reach proportionally (72.5 degree HT angle). This is the largest frame that Planet X offers...it's aero enough, and I got it at a steal. Anyway, needing more reach at this point is clearly pointing towards needing a longer frame.
To add more context to the videos...I'm rolling at ~200 watts, so at an actual effort, I could imagine the reach becoming more of an issue while scooting forward.