You make some valid points here. I like attorney not knowing when you would die part, it fits well. As far as I can remember JW's have thought that since Jesus was supposed to be ruling since 1914 then he might now know when Armageddon is coming. I've been around for nearly 25 years and I can remember that being said to me by more than one person. But now they have it in print.
Five years from now they may change that in a simple WT article and poof that's that. The simply truth is, is that it's purely speculation to say that Jesus now knows when. And the WT is good at speculation.