>>36795763Maybe. I could see both sides of the argument. On one hand, it would complete the Gen 1 trio since the core triangle is grass-fire-water.
On the other hand, it appears late in the dex. I know programming wise that means it was added last, but in a reorganized dex, it would be next to the other two Eeveelutions. I don't know if that was ever discovered, what the true dex order would have been.