I agree it is beyond ridiculous, the amount of code needed to display text. However, Microsoft are not giving us bullshit, the DX10/11 mutex/mix thingy is just because there was already a working technique, and they may have run out of time to move it all to DX11. They still provide arguably the best rendering code anywhere, so rather than get tired, I would say become more tolerant of the changes and imperfections. They are working on the dx10/11 issue and this is why I'm eagerly waiting for the 11.1 upgrade for Windows 7 (even tho I'm using W8 8-.).
In regards to your problem. I'm looking through my text code now. I have SlimDX text working.