The community response to the new 3D features has been one of the most excited and overwhelmingly positive responses to anything we've ever done.
Lots of users want different things from Construct, and in some cases different customers want contradictory things. We have to balance what thousands of people want. Unfortunately it's just impossible to make absolutely everyone happy, but we do our best as a small team with limited resources to aim for what will make the biggest impact for the most people.
That's not to say anyone's ideas aren't good ideas - this sounds good and it would be great to have it. But we have to balance that with literally hundreds, if not thousands, of other ideas, and in particular large and complex projects like the one you suggested appears to be are particularly tough. We tend to focus on the things we see lots of customers constantly requesting.