E string stuff and diff low B, can be somewhat prone to loose sound. The muddy or weak char many relate to short scale is imo often a result of the pups the more common popular short scale basses come with. Gibson ebo/ebo3 etc and their clones (muddy) and fender mustang and their clones(weak kinda lacking oomph) being the main examples I can think of. The more high end more modern short scale basses avoid most if not all this affect via the pups, electronics if active eq, build, and wood choices that give more bite or articulation.
Low E string stuff can sound as great as 34 scale, but low B string stuff that sounds great is much harder to do with short scale imo. Though I'm not a fan of Alembics in general, their short scale stuff pretty much was the early versions of short scale that equaled 34 scale basses sound wise. Imo.