I do appreciate it, but it wouldnt be that far off from real situation in 1919, Estonia being in Estonia & Livonia area along with Riga. Estonia was close of seizing Riga (in fact troops were in outskirts) when peace was made that ended latvian adventure for estonians. Plus latvians were very weak in terms of military before landeswehr war due to most soldiers converting to red side.
I do see your point though, but i still have to argue with that, since looking at map of 1919 summer, its more historical this way rather than Latvia having whole Estonia on top of their areas. Plus it would leave Estonia as only nation that wouldnt emerge from collapse of Russia...