There will always be those who will gainsay “Love at first sight”. Arthur Brooke, Shakespeare’s source, blames it on the Lovers’ “unhonest desires”. I take it that he viewed himself as quite authoritative on the subject; a righteously judgmental patriarchal figurehead. There's no shortage of them even today.
Anyone who has felt what it is that we might assume R&J were feeling, knows that choice & behavior in an individual can be completely ruled when one is ’stricken’. Nothing else matters (never mind "family honor", whatever that might mean, or have to do with true love) at the moment–it’s truly human. I think Shakespeare knew it–a good percentage of 154 sonnets is devoted to the subject.
I don't think it was Shakespeare's 'take' that the lesson to be learned had anything to do with the worthiness of "family honor", or that he was commenting on "so-called 'love' " in a negative way. --Quite the opposite is apparent in the play, the lines, and the statements made by the family members as to exactly who has hopefully learned a lesson about what is really important at the end of the play. And what is the response? They immediately think of erecting monuments--statues of "remembrance"...for pigeons to crap on.
Interesting that history reflects their mouth-honor when it comes to 'Blood-relations' and 'family honor' in Italy. Plenty of statues and plenty of blood-letting were yet to come.