I think it would be good to keep "new" in there. How about:

"New is too confusing: simplifying constructors in Javascript"

I can't seem to get to the keyword planner link without doing all kinds of sign up. That said, I'd like to think about how we can make our blog more searchable, since that's how I come across many blogs. I think the title is key since that is what determines whether someone will click in.