You don’t owe him an apology. You are objecting in good faith, and taking the time to understand. No one should apologize for good faith resistance.
That is about right. However, @Giltil is speaking non-precisely, without mathematical rigor. There is an intuitive argument he is trying to make, but the problem is that statistics is not intuitive. @T_aquaticus is proposing that negative control to demonstrate a failure case for the logic his is using, it weree to be taken aligned with how ID argues the case.