Since this is a member of the house of Hohenzollern, I would not characterize the use of Hohenzollern as LNAB "wrong" though as Helmut suggests, something closer to what the family actually used coud be an improvement.
That name is not as wrong as his father's LNAB "VonHohenzollern", or his aunt by alliance, "Christine-26". Also consider his mother's profile, the product of the merge of profiles "Frederica-3", "Prussia-11", "Louise-34" and "Frederica-2". This tells something about the confusion that reigns with these LNABs. Any of these names is worse than the Hohenzollern she has now.
Of course all the bizarre names are products of wild imports of massive Gedcoms early in WikiTree's life, before a few rules were changed, and done with Gedcoms that may not have supported spaces in family names, for instance. Fixing them is a work in progress. It takes a lot of time because, first, there are many of them, and second, it's sometimes very difficult to agree on a proper LNAB.