N-2 companies ago I was a tech lead in 2015 where we were migrating to AWS. AWS was constantly explaining which underlying services were HIPAA compliant and what you build on top of it was your responsibility. I had to answer to separate non AWS compliance folks about my architecture.
AWS also gave guidance. But made no promises that your implementation was compliant. That’s where the entire “shared responsibility model” comes in.
Now, I work at AWS in ProServe. I am very familiar with our messaging regarding HIPAA compliance. We are very careful not to rubber stamp things as compliant. I know the best practices in and out. But when I’m asked if something is compliant, I say this is the guidance we are given. I’ll do a presentation before an Architecture Review board. But I would never make anything that hints as a guarantee.