Neither semantics nor logic  requires V P structure, a priori, that is there's no particular reason why you'd expect verb phrase structuring in particular from either of those two enterprises, because either could get by with  er  either the flat structure Florence teased Dougal, that's the structure in T three  three separate constituents, or teased Florence Dougal where teased is one constituent and Florence Dougal is another which is the way we most standardly do it  calculus  and that works fine.