So it would apply to only the President/Vice President and regional Senators? There's an equity issue here - if one class of Senators is to be held to this account and not the other? or is it only the President and and Vice President... if that's the case, then it should be made clear.
I sympathize with the concern, but the problem here is with the At-Large seats and the way they are elected. Deus, Libertas (back in the day), JCL represented chunks of the electorate and the popular election method that is at least somewhat proportional would provide someone to represent but at the same time, the majority would be hostile to said representation. Therefore there is at the same time the unfairness of treating one class different from other, there is also the problem that it cannot be fairly implemented without risking unfair treatment of this group by denying them an access the present voting system allots.
One should also remember that the two Senate clases are meant to serve as substitutes for a bicameral legislature and thus not only vast differences in constituency size between the two but also other differences are to be expected. A recall works well in a regional election, how do you recall someone who represents 20% of the electorate. By definition, the ideologues are always disasdvantaged be they left or right, but most of all the right in this situation.