Is it really more efficient to map out the entire 16th note grid for every voice for every measure of music, though? And I don't even want to ask how you're supposed to notate triplets, flams, accents etc.The way notation is organized is really inefficient for an instrument that has no ability to hold notes, not to mention when "chords" are notated. Yeesh.
Why don't professional cyclists use all the tools at their disposal, and put training wheels on their bikes? Tabs are just not a professional tool. Or, they are a tool with very limited applications-- people teaching Latin or African percussion to amateurs often use them, because the rhythms are complicated, and the students are usually not sophisticated readers. To people who can read, tabs are otherwise quite useless.Reading music, tabs, learning by ear...why does any one of them have to be verboten? Why not use all available tools at your disposal? As long as they don't hinder your playing or cause bad habits I don't see the harm in it.