Hope you are doing great!
This idea is something inspired by cache plugin as they do sitemap preloading.
Currently, when the first time a visitor request X particular URL from a new location, they get MISS response. Similarly, after purging cache, we get an Expired response in the HTTP header.
I think after purging, at least for static resource - if Cloudflare starts preloading cache globally before the client request from X location, it would be beneficial for the first time performance.
Please let me know what do you think about this.
Thanks & Regards,