This might not even be a big exaggeration of the canon heights of these two. Marisa and Meiling are significantly shorter and taller than average, respectively.
Marisa's not that short. Canonically, she's a little shorter than Reimu, who, in turn, is average in height. There is the infamous picture of Marisa and Kosuzu next to a seated Rinnosuke, but that deviates from other representations. An example for WaHH: https://dynasty-scans.com/chapters/wild_and_horned_hermit_ch28#6