You were wondering about explosivity, in 2020 he accelerated and almost pipped Ala on the line and would have, had he not been boxed in/if the line would have been 1m further. So I do not think Alaphilippe is more explosive (on a flat run-in, that is)
mwah.
https://sporza.be/nl/2019/04/17/mathieu-van-der-poel-wint-de-brabantse-pijl-in-beklijvende-sprin/