Booting or decommisioning nodes with MVs is unbearably slow as all streams go through the regular write paths. This causes read-before-writes for every mutation and during bootstrap it causes them to be sent to batchlog.
The makes it virtually impossible to boot a new node in an acceptable amount of time.
Using the regular streaming behaviour for consistent range movements works much better in this case and does not break the MV local consistency contract.
Already tested on own cluster.
Bootstrap case is super easy to handle, decommission case requires