Irina_Nechaeva Azure Active Directory is not an ideal name, but it is already a standard technical term that has fully stabilized in the IT community. Now for supposed clarity MS wants to give Entra Id. Which is a much more "strange" name. It does not correspond to terminology in IAM/IdM systems and it sounds as mixing different terminologies together.
So what you state as a problem with AAD can in a few years bring the same confusion as you mention with AAD and MS will come back with the fact that the name was not chosen well and must be changed.
Definitely we will get used to it as we got used to AAD. What I am missing is wider discussion to reduce risk of such changes in the future and primary notify clients about such important changes ahead and much sooner before implementation to plan it.