Why should they buy it over something else (like a Studio)" And then ask a follow up question, like "Are you interested in that market?". He was on to something with the mention of servers and cloud computing, but didn't really ask a question there.
They give some vague answer about how they continue to be interested in serving the workflow needs of professionals, then if pressed further say they don't discuss future products.
The reality is that current M1/M2 SOCs have (common ARM) limitations that prevent efficient use by off-the-shelf dGPU/eGPU options.
If the real question is, "does Apple see it as important to make dGPU/eGPU work", I think the answer given was that they were more focused on making their iGPU and other parts of their existing SoC meet customer needs, and that when they look at real customer workflows the memory architecture enabled things dGPU/eGPU can't.
Asking about whether they have a product today that would help people with currently-GPU-requiring workflows _and_ existing tools for Mac (such as ML training) was a great way to go with the question, but the result was still a bit of a non-answer.
Apple doesn't try to "win" a market, they just try to take most of the money from it. Apple just isn't going to provide value for a hardware product targeting 3D render farms and AI training clusters.
It's a totally fair question about their most expensive computer. I doubt that would be off limits, but if it is, it just proves that these have become a total waste of time.
I don't know, there were a lot of really interesting tidbits about the development process of the new Macs and new headset that I don't think I would have ever learned about any other way.
Gruber did try to bring up things about the lack of information on any EU side loading features, but it was basically "we're working with regulators".
It's just going to be far easier to get them to talk about the things they did release, than to elaborate on the things they didn't release. This is an event in a theatre with people attending for fun, not the Nixon interviews.
We already know dGPU/eGPU support isn't there, Apple already knew that some people would be upset that it was missing, and we all know that there isn't going to be an ounce of information from Apple about if/when it is coming.