Problem is, security people don't want you to MITM connections, because it's insecure (mostly to business interests). Hence stuff like certificate pinning, HSTS, DoH...
But this goes back to the vendors not providing better tools in the first place. We shouldn't NEED to be picking apart packet streams to prove to some jackass tech support ticket that their code is FUBAR. They're basically outsourcing support to their customer or userbase and we tolerated it because it was more expedient.