Update: I decompiled the DynamoSimulationRSA.dll and found that there is a CreateAnalyticalFromPoints method, which is exactly what I needed, but unfortunately it is a private method (why?).
So I tried to translate that method code in a python script, but then again I need to access to the AnalyticalPanel() constructor, which is private.
There is the EmptyPanel public method, but it returns null instead of a new instance of AnalyticalPanel (so it is pretty useless).
Where should I direct all my frustration and request for a patch in this library?
BTW: I just noted that there was another discussion that tried to address something similar to my problem, but no solution was found… Bummer.