I am really surprised this didn't kick up

I had a chassis builder tell me that frame connectors don't do anything . He also told me a 6point roll won't stiffen a chassis . hahahaha. To the person who posted that Detroit didn't put flex into their cars never rode in a 1959-1964 Chevy Impala x-frame . I used to race a 1965 Valiant Signet 2 dr. h.t., 272 2bbl. After a pass the doors wouldn't open . Tied the frames and problem solved .
Was that chassis builder named Tony?