Why is COD so unfinished...well...because its unfinished. IL-2 has had ten years of refinements after three or four years of development time. I enjoyed many years of the earlier 1l-2 series, but now prefer the more immersive engine management of COD when I do fly. Also doing some testing on WT. I doubt that it will be as immersive for me as a finished new IL-2 series, but the new series may never be finished.
I am testing WT too and I agree with you. As it stands now, if CoD is finished and becomes the sim it was supposed to and WT stays as it is, then agreed CoD will be the better sim. However, WT is not finished either and it runs way better and looks pretty good already. Who's to say they won't work on the things you don't like before they release. Time will tell.
One things for sure, I can see already that WT will not be the software disaster that CoD was on release.