It's a completely different matters.
At least this was still true in Windows 8.1.
The NT kernel is sometimes called a _hybrid_ microkernel, but this refers only to the fact that the internal modules are logically decoupled (with message passing between them, for example). Also, graphics actually used to run in userland until they moved it into the kernel for Windows 2000.
There are some other drivers that also run in user mode, but graphics drivers were the really big change. Most bluescreens in Windows XP were caused by graphics drivers.
Since Vista, Windows has been able to recover from a failure in the graphics driver. The screen blinks for a second, and then a balloon notification comes up, saying that the graphics driver has been restarted.
NT is a hybrid kernel because some drivers run in ring 0, others (typically peripheral drivers) run outside ring 0. Some drivers (specifically graphics card drivers) run split in kernel mode and user mode: A small part runs in kernel mode, while the complex part runs in user mode.
While you are correct that the graphics driver was moved to kernel mode for Windows 2000/XP, it was actually moved half-way back with Vista. This was in fact the reason why graphics drivers sucked in the beginning for Vista: MS only gave the vendors 4 months since the last change to the graphics driver model before Vista was released.
