I don't believe we've had much contact with publishers you've listed. I believe you're referring to Buildbox who were having issues with publishers rejecting Buildbox games because they were built with Buildbox/publishers couldn't tie in their analytics/services to the Buildbox games*.
We've not heard of any issues with publishers rejecting our games, and as our platform creates HTML5 games and has a fully documented Javascript SDK there should be no issues at all with publishers supporting Construct made games.
I'm not sure if there's much benefit from our point of view making contact with these publishers as above because we're not aware of any show stopping issues preventing them from publishing games made in Construct.
* This is my interpretation of what I've observed on their forums