That said, I'm sure there are architects today for which some or all of this is not true.
Most of the above are subjects an architect student would have had to learn about and demonstrate profienciency in, to earn their degree, a 100 years ago.
I'm sure the change in architecture's priorities played a role in this too. Industrial materials, construction efficiency. The need to mass produce housing, costs and new social ideals, yadayadayada.
And ofc the modernist rejection of any ornament; even that which is there historically, on existing architecture.
My hope is that in a future where we 3D-print buildings or construct them with robots we will see a renaissance of non-functional[1] beauty/sculpture/texture/color in architecture because the cost difference will be marginal/nonexistend.
But then, architecture is also always a mirror of the period. And from that pov it's not looking so great for beauty making it back any time soon.
[1] Yet functional because how can the happiness/joy of the perceiver of architecture be removed from what should count as functional, in architecture?