No, that request should get you some fairly precise answers. If the answers are unsatisfactory then you always have the option to escalate, and it will actually help you if you do in the end decide to lodge a complaint with the regulators.

As it stands it's clearly an attempt at causing the wheels to grind to a halt, the title of the request and the context in which it has been presented are evidence of that as is the faux concern laced through the letter. This is not a request made in good faith.