I am curious about why they went with Fastly? Doesn't Cloudflare free tier provide caching of images? Worst case scenario, they could use their $20 or $200 tier

I am curious about why they went with Fastly? Doesn't Cloudflare free tier provide caching of images? Worst case scenario, they could use their $20 or $200 tiers if needed? https://support.cloudflare.com/hc/en-us/articles/200172516-Understanding-Cloudflare-s-CDN https://support.cloudflare.com/hc/en-us/articles/200172516-U...