I don't think so. Especially with HTTP 2 fetching resources from the same domain will be very fast. I guess the main audience of CDNs are huge sites that will

I don't think so. Especially with HTTP 2 fetching resources from the same domain will be very fast. I guess the main audience of CDNs are huge sites that will see immediate benefits. For them SRI is good. But using CDN from day 1 seems to me like a premature optimization. SRI solves some problems (CDN compromise) in exchange for different set of problems (resource not loaded, what now?). And old saying comes to mind... "I had a problem and decided to use regular expressions... Now I have two problems".