Why Completing Microsoft 365 Publisher Attestation and Microsoft 365 App Certification is Crucial

We have created an application, and we are have it available on the Microsoft Teams Store and Commercial Marketplace, but we haven't completed the attestation. I was just asking about this today and we are going to complete the attestation step. We have customers asking us some of the same questions covered by the attestation process, so we might as well cover it once.
This is our app (FYI)
https://www.chimev5.com/