I think you are straying into conspiracy theory here.
From the Federalist #85, by Alexander Hamilton:
The intrinsic difficulty of governing THIRTEEN STATES at any rate, independent of calculations upon an ordinary degree of public spirit and integrity, will, in my opinion constantly impose on the national rulers the necessity of a spirit of accommodation to the reasonable expectations of their constituents. But there is yet a further consideration, which proves beyond the possibility of a doubt, that the observation is futile. It is this that the national rulers, whenever nine States concur, will have no option upon the subject. By the fifth article of the plan, the Congres will be obliged “on the application of the legislatures of two thirds of the States [which at present amount to nine], to call a convention for proposing amendments, which shall be valid, to all intents and purposes, as part of the Constitution, when ratified by the legislatures of three fourths of the States, or by conventions in three fourths thereof.” The words of this article are peremptory. The Congress “shall call a convention.” Nothing in this particular is left to the discretion of that body. And of consequence, all the declamation about the disinclination to a change vanishes in air. Nor however difficult it may be supposed to unite two thirds or three fourths of the State legislatures, in amendments which may affect local interests, can there be any room to apprehend any such difficulty in a union on points which are merely relative to the general liberty or security of the people. We may safely rely on the disposition of the State legislatures to erect barriers against the encroachments of the national authority.
Hamilton writes that the threat of states calling an Article V convention is intended as a check on a federal government that ignores their interests.
Hamilton writes that Article V give no discretion to Congress, other than that they are obligated to call the Convention. It is clear from the context of Federalist #85 that the convention is for the states to control the federal government, not for the federal government to coopt the convention to hurt the states.
-PJ