Unlike others, I understood the problem. Your true problem is unless this web agency is cranking out landing pages for a living - your customer will probably spend more time getting your tool integrated than working with it. And they cease to become a customer when the project is over. There is value in this, but besides maybe some server hosting, what are you doing that can't be accomplished with an open source JS p…
I think you made a good point about the typical project live spam and I might be reason why people can not get to use the tool righ away. I personally see that tool being very useful for "intra team" communication as well.