Sure, but I think that's why most people admit that one of the weaknesses of 4e was how it presented and organized everything. People are fine digging through a giant spell list, but they aren't as fine with going through a level by level catalog for a class list of powers. I get why 4e did it, and I can see the strengths of that approach, but I can also see how that turned people off. 4e could have organized powers by source, and said, here is the list of tactics for the Martial power source, and just given the power list for each class.