Missed the original. That seems like a reasonable way to highlight software that you believe is fundamentally insecure. Obviously you can't be on the hook to fix deep architectural issues yourself, but just submitting a single PR will be treated as "problem solved". Since most of any software contains some vulnerability, just saying "this software has an RCE" isn't actually a disclosure at all. The real issue is that the given vulnerability was (supposedly) easy to find, which if true is not something that will be fixed by targeting just that exploit chain, and needs deep changes to fix.