I have been thinking about it too. I think you definitely need people who are more algorithmically inclined in software, but you also need people who can "engineer".

My current take is that the tech industry is so young that we are still struggling with proper definitions of titles and division of labor.

In my experience, after school I could do all the hard mathy/algo/data structure things, but I had no idea what REST even meant. So all startups instantly rejected me, while FAANG was very excited to have me. I felt like a huge imposter also, because if I were smart, how come I didn't know all the cool stuff that people at hackathons know.