Auryc interview questions

I was introduced to Auryc via a recruiting company, and they set me up for two chats with a co-founder. They both went pretty well, though they did not really give me time to ask any questions about the role or the company. Due to covid and office closures, they adjusted their interview process to involve a take-home project to be completed in 2-3 days or so. This was a Tuesday. I asked a few questions via email on Thursday, and received no response. I submitted the project the next day, Friday, and received no response. The following week, the recruiting company let me know the role had been filled, which explains why they stopped responding. It's been a few weeks now, and I never heard anything from Auryc again. I don't mind that it didn't work out, as I didn't get a sense of the company, role, team, or a full picture of what they were doing, etc, positive or negative. I never got much of a chance to discuss those things to begin with. So I didn't know if I would fit in or like the work, what their engineering challenges were, etc. That said, it's very unprofessional to ignore someone while they're spending their time and energy working on a take-home test for you, especially when you already know their efforts are no longer needed. I don't blame them for filling the role after I started working on the project - it happens. But the courtesy of a simple email telling me as much would have been enough. How long would that have taken, 1-2 minutes at most? This means they don't respect your time.