I didn't miss your point at all, only tried to add to it. The effectiveness of torture absolutely should be questioned, and happily the real answer aligns with

I didn't miss your point at all, only tried to add to it. The effectiveness of torture absolutely should be questioned, and happily the real answer aligns with the answer we would like, and contributes to the argument against torture, rather than the one for it. And even if it were effective, most of the time we would still rule it out for the reasons you already mentioned, however its effectiveness could no longer be used as an argument against it. Not asking that question, and mentioning the answer, is just going to make your argument weaker either way: if it is effective you'll be ignoring a strength in your opponent's position, and if it isn't effective you'll be ignoring one of your own strengths.