The automated search system here has limitations. And it would appear that the software that created your Gedcom didn't interface well with the WikiTree algorithms that interpret Gedcoms. (The Gedcom "standard" isn't really a standard, so this sort of problem is not uncommon.)
Some of us WikiTreers have had an annoying habit of nagging people to search WikiTree for duplicates (don't just rely on the automatic searching) before creating new profiles, particularly for long-ago people (when spelling was highly variable and dates are often just guesses) and for names that are subject to variation (like Van Egmond vs. Egmond). Unfortunately, that's something you need to do in this situation.
Also, note that when you create a new profile using Gedcompare, you can (and should) correct errors, including the spelling of the last name, before you create the profile.