adafruit is using cloudflare and it automatically loads stuff from paypal, amazon and cloudfront. it will also ship your stuff using dhl, ups etc.
would you say that you trust all of those companies with your (meta)data? if yes, reCAPTCHA won’t make a difference. although i do agree that everyone should use hCaptcha
But what if I want to snort Wiesnkoks off of a dick?