[It is highly advanced technology, and Pamela has to wonder just how many lives have been lost to the Gigas forces. How much destruction has been wrought on the surrounding environment?]

That seems like something that could be established on a diplomatic mission. Just an offhand remark about how impressively fast the Rapidash are...and see if they say anything to indicate they've got any faster Pokemon or technology available to them.

[It's also a chance to observe with their own eyes just what the Gigas forces have.]