How long has it been out? Absolutely nothing has been added that cannot be done with Construct 2 one way or the other, maybe addition of javascript now is something new.
So Construct is great for making games, faster than any other engine, but if you want to use ads to cash in then...........
Construct 3 has a Build Service that allows you to easily and quickly export your game to mobile and has active support on mobile advert and IAPs.
So what you are asking is already added to Construct 3 and actively supported which is a major difference with C2.
JavaScript is actually a huge addition, search feature that is a life saver for anyone actually making complex projects, the reworked Functions and even more already in and more to come.
Saying "nothing is added" is either unfair or an uneducated assessment.