Not sure how I missed your last reply! So sorry for the delay. Are things working better for you with this in our recent release?
NinaAndrei Datcu commented
Thanks for sharing your thoughts. Unfortunately, what you have described above is a known limitation of our Sketch text import. Basically, at the moment XD prefers to split the letters in order to gain perfect visual accuracy (taking into account variable kerning and other custom font properties). Finding the right balance between visual accuracy and text grouping is still a work in progress. If you feel we should trade some of the visual accuracy for better text grouping please let us know.