I love Minyah too. I was happy to see her make an appearance in Discovery. I was also happy to see that she does indeed appear to be slightly taller than most Sun Folk, Wolfriders and Go-Backs - which is how she was depicted in her original appearance, along with Sun-Toucher. I always thought that little detail was great, indicating that these elves were part of the gradual shortening of the elves. These elves might be third or fourth generation - not a tall as Savah or the Gliders, but taller than younger generations.
See what I mean here, where she is almost a head taller than Shenshen and Redlance (even minus the hat):