Flash has not been able to decide if it's animation software or a software platform for pretty much the entire time I've used it. When I was doing web animation back in 2000, Macromedia's response to complaints about the editor crashing like crazy when dealing with the ~20M source files involved in making 3-4 minute cartoons was basically "don't use it for that, it's for making little interactive widgets".

Oh yeah, and animating in Flash is often pretty horrible too.