Along with the Skype code, the Skype brand was also thrown in the trash. You could question that decision—perhaps keeping both brands for different target demographics would have been a better move. Teams could be for work and business, while Skype (powered by Teams' code) could remain for regular consumers. But I’m not sure. Maybe it’s better to strengthen a single brand rather than maintain two separate products.
That said, I do have an issue with the name Teams—it doesn’t quite fit the use case of calling your grandma overseas.