Count me in as well. I've been using the Metro RDP app since Win8.0 and never had a problem until the dreaded update that brought this title-bar along...
Since that update, I close the RDP app by accident about 3 to 4 times a week because the godawful titlebar jumps in front of my RDP session. Not a big deal if you're clicking in the top middle of your screen, but closing a maximized window in RDP makes you quit the whole RDP app in no time!
I particularly like the ability to quickly switch between desktop and Metro RDP app through the upper left corner. I Always use my RDP on a second screen and it's nice to switch back and forth between desktop programs and RDP.
When using the desktop RDP in full screen with multiple sessions, you need to move your mouse all the way up for the RDP bar to appear, minimize the window, then move your mouse all the way down to click the RDP icon on the task bar to select what session you'd like to show now. With the metro RDP app, this is sooooo much easier because everything is on the top of the screen.
After having closed the Metro RDP app by accident for the gazillionth time, I came across this thread. Since the title bar initially wasn't there and since it's obvious that this is a real productivity-PITA, please consider giving the users a choice to disable this thing...