You can get the same data from the servers using the available APIs, but you do risk getting banned for it. I would tread carefully.
Now that the APIs changes have been reverse engineered, the path forward for Niantic is probably banning cheaters directly and/or make further changes to the API.
That said, people checking IV are probably lower priority out of bots, scanners and GPS spoofers.
The safest way to get IV stats from the server is probably reading server response using MITM, assuming the attack doesn't expose telltale sign to the server that the connection is compromised.