I largely agree with the author. When our SOC wanted to implement TLS inspection I blocked it. Mostly because we not nearly at the security level for this, but also because it just fucks with so many things.

That said, we are not a business dealing with highly sensitive data or legal responsibilities surrounding data loss prevention.

If you are a business like that, say a bank or a hospital, you want to be able to block patient / customer data leaving your systems. You can do this by setting up a regex for a known format like patient numbers or bank account numbers.

This requires TLS inspection obviously.

Though this makes it harder to steal this data, not impossible.

It does however allow the C-suite to say they did everything they could to prevent it.