Originally posted by DeadJohn Skill and vision help you get the most out of a camera but they can't bestow your gear with magical abilities. Some scenes are much more difficult to shoot with the K-01 than with a DSLR. If ZombieArmy is limited by the K-01 AF then a DSLR seems like a worthwhile upgrade.
In other words, get the tool that enables you to reach your vision. Some photography specialties need specialized equipment.
there are three things that can get everything out of your camera. Skill, Vision and the abillity to work around the camera's "weaknesses".
Yes a DSLR is "better" at some things than the K-01 like you wrote. But that doesn't mean it should be holding you back, because like you wrote, it is more difficult, but it is not impossible. But that is the age of today. A camera that is fantastic now, will be "holding you back" a year later (probably because there is a newer model with more this and that).
and yes some photography needs specialized equipment. But for most part, that lies in the lens choice rather than camera choice.