He specifically cited bad battery life on the ROG Ally and Lenovo Go, saying that getting only one hour of battery life isn’t enough. The Steam Deck (especially the OLED model) does a lot better battery wise, but improving power efficiency should really help with any games that are maxing out the Deck’s power.
Oh yeah, new tech is cool and potentially useful. My point was that this particular excitement is not too likely to improve anything on the current hardware we have.