It's common to use get in American English. In this case, get means the same thing as obtain. I don't know what a better example would be or I'd have used one. I wasn't trying to write a "good" sentence. I want to know if it matters when I mix tenses like that. Whether it's unfavorable or changes meaning/implication in some way.
She wasn't as sad as he was about Trump's win.
This sentence is fine, I think, whether it could be written better or not.
She hadn't been as sad as he was about Trump's win.
I think this sentence is grammatical too, though I'm not sure, but does it mean something different than:
She hadnt been as sad as he had been about Trump's win.
If they don't mean something different, or if that nuance is indiscernible to native speakers, which is the preferred sentence between the two and why?