I think the Acer D9 is a fantastic concept and based off an observation I've made as well; Designers are stuck having to use gaming notebooks for the performance they need. Designers are just about the last group of people who dig the gaming aesthetic.
I think the design needs some refinement - particularly looks like it's about 90% there. I don't mind the hinge design, I actually think as a notebook that will be used as a drawing tablet often it's the best one out there - but they should really engineer hinges that take up less footprint. I'm sure they will.
It's also oddly priced, in my opinion. Yes, it's a freakin' Xeon with a RTX 2080 with a 17" drawing-capable screen. I get it. But it sort of falls in the category of "Swiss-Army Knife" where it's o.k. at a lot of things, but not particularly great at anything. With that size and power, it will definitely be used as just a desktop machine, but for $5000, a design company could supply their designer with a better cooled desktop with the same horsepower, a Wacom tablet that crushes the drawing capability of the D9 screen, and a much more portable laptop if they really need one. As a tool that makes a company money, they want the best and most efficient way to do their tasks, not necessarily the most convenient.
I think for a first generation product, it's great. I hope it sells well and the customers are happy and return to Acer if Acer keeps up the innovation on this front. I also realize the price is probably so high because of quantitiy - they probably aren't expecting to sell many of them quite yet. But I think for the next generations they should refine the design more (designers especially will pay a premium for tools that are more refined even though it makes little difference in the real world), offering lower tiers in performance, and reconsidering designers workflows and what they really need. Hell, stick a tiny battery in there to give it a half hour of battery life or just remove the battery all together and just call it a portable desktop if that's what you need to lower that price or refine the design.