These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Don't Shoot the Message - yes, it's ridiculously preachy, sentimental, and all the characters are one-dimensional. But for that time (and even, in a way, today), the message of "Don't run off with a hot guy who looks good in a uniform" was extremely important - as Lydia Bennet (or at least, her sisters) could attest.