Odd BenchmarkTools timings using @threads and Octavian

It would, but theoretically StructArrays should work very well with LoopVectorization.vmap(t)!, so that’d be a good first PR if someone wants to try (I’d be happy to answer any questions/explain an approach/etc).
The vmap! code is very simple and independent from the rest of LoopVectorization, making it much more approachable.
Otherwise, you could file an issue and add it to the pile.