I mean, that question is already well answered within the first (opening) comment of marsf, so that part smells "tl;dr. Can I call you".
This sentence makes it even worse. All the pain points are openly written there.
No, it's not. Half of the listed reasons are obvious enough, but the half is very vague. I don't know if they are something you would understand as an insider, but as an outsider there would be many open questions if it would be my task to make this work.
The whole communication seems like people on one or both sides lacking information, and one trying to fix this to start the process for solving the other sides' problem. Nothing wrong with this in a professional environment.