It's not a pure logical argument. What you are describing has never been observed though in anyone taking any type of antiretroviral therapy in the now 20+ years of the HAART era. This is a completely unfounded what-if.

The donors you don't want donating are already excluded by existing questions. And if you are that concerned about completely hypothetical unknowns then you might as well also not trust any of the batch testing done on the donors blood anyway. The questions can only ever be a useful prefilter, not a perfect safety net.