Dynamo2.0 can’t be installed on Revit 2016?!

That is correct, Autodesk only support 3 version back of Revit. This means that Dynamo 1.3.3 and 2.0 only works on Revit 2017,2018,2019.

While version 1.3.2 works on Revit 2016.

Have a look here:

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