This is a phrase that I find annoying in general-and particularly in professional correspondences. The most interesting part is that it often concludes an elaborate explanation or a lengthy email.
Does that make sense?!
For me, it implies one of two things. Either the speaker knows that he/she is incoherent and have been rambling nonsense hence he/she is not expecting people to understand what they just said, and in that case the more appropriate thing to say would be: I apologize for being a complete buffoon. Or! The speaker is imposing that the audience are a bunch of apes that are unable to comprehend his/her words, and in that case the more appropriate thing to say would be: I apologize for being a condescending fool.
I believe any subject concluded with-does that make (and to add insult to the injury,some throw in ”any”) sense-is a subject best left un-discussed.