You think those -an, -en, -on names sound neo-Victorian? I have to say I can't really see it. 'Ethan', maybe, but I don't think that's really comparable to the others. 'Ethan' is a perfectly cromulent Hebrew name.
i was thinking more stuff like olivia, noah, elliott, oliver, xavier, etc. the similar sounding names ending in consonants is sort of an overlapping trend. in some cases it wouldn't be that bad if it wasn't for the overuse of certain names admittedly. i guess i have sort of a bias towards names from the mid 20th century