It’s such a paradox when people don’t care about what sounds real, still they complain if it doesn’t sound real. “I don’t care if real horn players don’t play legato in fortissimo, I want my samples to do so. But they should sound real.”
It really isn't. No one's saying that having the technical knowledge to identify what sounds real is irrelevant. I'm saying that bickering about whether or not horns can slur their notes above some specific dynamic threshold is pointless when the library is just clearly bad at legato.