I can’t speak about the capabilities of the Ping remote, but in searching I see that there is some amount of work attempting to reverse-engineer the Ping radio communication at GitHub - mariusae/pingrf: RF stack for the Animas OneTouch Ping insulin pump
Similarly there is work on the Omnipod radio interface at GitHub - openaps/openomni: Documentation and library for decoding omnipod communications.
So perhaps one day those command links will be well enough understood that they can be incorporated in closed-loop software. At present, the Medtronic command interface is well understood, so it is the one kind of pump currently used.
One overview of the situation is Information about compatible insulin pumps — OpenAPS 0.0.0 documentation