Two-way binding is a neat trick, but I hate that it clutters my markup, and almost always I need to augment it in some way. Backbone's declarative events hash is universally a better way to go for that.
Can you please make any other sane argument other than "it clutters my markup"? You are holding the markup to a standard which seems like there is someone out there handing out "The best clean and clutter free markup" award.
End of the day you need to somehow hook up js and html. There is no second question to that. If you shovel out all the shit from html guess where it will land? In your js ( all the dom manipulation code!).
