That's fair, although a zebra is similar enough to a horse where maybe a Galarian Blitzle/Zebstrika could resemble a more typical horse more than a zebra. Maybe, as opposed to Galarian Ponyta that's based on a mythical creature, it could resemble a knight's steed with armor and stuff. Could see that being a Steel type and maybe something slower but bulkier than Blitzle/Zebstrika.Be cause regional variations dont involve a change of species all together. Alolan sandshrew changed type but it's the same animal.
IDK, just a thought.