Definitely. There are advantages to both states, as they're optimized for different things. There are times for information gathering and eventually decision making, and there's times for acting on those decisions. While neither is generally a state of purely that type, there are reasons to believe that the optimal tools for one may not be the same as the optimal tools for another.
In that respect it's not whether keyboard binding or mouse context menues are better, it's about providing tools to support both contexts, so the appropriate one can be chosen at the appropriate time.
In that respect it's not whether keyboard binding or mouse context menues are better, it's about providing tools to support both contexts, so the appropriate one can be chosen at the appropriate time.