Where did you get the 700 pedestals added in 2 years? A reliable source or just extrapolating from the "we want to triple in 2 years" or similar message Tesla put out about the entire SC network? It does sound like you've got some inside scoop
Either way, I sure hope you're correct! That is a LOT of stalls!
AZ and PHX in particular, are WAY behind other cities as of now. PHX has Zero V3 chargers and not even a permit for one yet. They have done a decent job of upgrading most of the outlying SCs throughout the state with a few exceptions like Casa Grande, Cordes Lakes, Flagstaff etc.