Yeah safe mode is a bitch on win8 if you can't boot the system. You have to use bcdedit to make a second boot option that has safe mode enabled. That could be a really big issue along the line.
That's not true, that's only one way to shut down. If you go to the charms bar (on the right), click settings, power options are at the bottom. It's still 3/4 mouse clicks and about 7 on the keyboard but it's there. Best thing to do is create a shutdown shortcut and pin that to the start screen. Still a huge hassle though.
The reason behind this is that Windows 8 is designed to be put on standby and resumed - generally using the hardware power button on tablets or laptops (or by opening/closing the lid) - rather than shutdown or rebooted often. But for those that do need to shutdown, or those running in VMs or remotely, it's a pain.
Things like that make it - to me - a bad OS. Sure, it's great for tablets and on touchscreen laptops, and sure it's got a lot of improvements in things like startup time etc, but it's awful for most people and for power users to use.
I'm not sure that's really the case. With XP Mode (which is touted as a 'feature' of Windows 7), 16-bit applications can still run. Just not natively. In a big company there are many options to remedy this, such as App-V, and it's not an issue that most users or admins would ever face.