I’ll give a short anecdote that might sway your opinion. I grew up poor in Baltimore City. I directly benefitted from the CTY program, where I was able to take accelerated math courses over the summer. My family didn’t pay a dime of the $3k+ per summer cost to attend. After several summers of CTY, I was able to take AP Calculus as a freshman in high school. I would not be who I am today without CTY.
I agree, that article written by the director of CTY is biased. And most who attended were rich kids, so maybe in aggregate their approach doesn’t make a difference. But it made a difference for me. CTY provided opportunities for me I never would have had otherwise.