Saturn 5 had a flawless record. The leftover space shuttle parts which SLS is cobbled together from, not so much. SRBs are inherently dangerous, theyre designed to quickly launch nukes from silos, not people. And Orion is just a typical modern Boeing project. So far its fallen at every hurdle right?

Saturn 5 came close to catastrophic failure at least once. It had partial failures. Its sort of perfect record is mostly down to luck and not launching very many times.

Of course, six decades later, we should be able to do a lot better.

Orion is a Lockheed (CM) and Airbus (ESM) project.