It is sad, but big sedans do not sell well and the X really needed to be replaced with something completely different. There are now several other 3 row EV SUVs competing with it, and even low volume ones (eg, R1S) outsell it easily.
Don't be surprised if something else takes its place as they do need something larger than Y and less expensive than X was.
Don't be surprised if something else takes its place as they do need something larger than Y and less expensive than X was.