I didn't make the decision, the company I worked for did. I was asked to come up with a way to help make the process smooth. I don't know their exact reasons,

I didn't make the decision, the company I worked for did. I was asked to come up with a way to help make the process smooth. I don't know their exact reasons, probably budget related since they were already using O365. I can nearly guarantee it wasn't because Teams offers a better user experience. :D