Horrible, absolutely horrible update.
One of the best things the alpha 2 had was a bug that actually made the game be more creative for advanced builders, and you actually "fixed" it, when I (and others) asked a million times in the feedback threads it was actually a good thing to have if it was not going to be implemented as a full thing in the game (and you say you hear us, but I only see you are hearing right now coaster builders only).
The worst part is not even they have taken it out, is the feel of radio silence about this from Frontier (there are a lot of positive threads in the feedback forums about it). The bug wasnt harmful and the multiple hours I have been using can attest that (thats why we are basically testers no?). Have you taken it away because you want to implement it in the game without being a bug? (why not wait until it was implemented before taking this fredom away). It was not intended is not an excuse, lots of things are not intended in games, and then people find the game is better with them. Whats about the quarter grid, is that also a bug thats going to be taken away from us?
Lots of the scenery pieces that are in game work in cumbersome ways (the old alpha 1 wall extras are basically useless most of the time, and we are still waiting for quarter width wall pieces and 1 metre height walls becuase hey! your stations are useless right now without those pieces) and we creative people have to find ways around your restrictions, and you are going to even put more restrictions to us to the workarounds we found. I dont know if that is the kind of game I want to play if I have to be sincere.
And then the putting restriction in coasters.... Im not even someone that his favourite aspect of this games are building coasters (as I said, I prefer building theming), but I can understand people that want creative freedom making coasters wanting no restrictions.
If you really think is going to help the campaign mode having restrictions, why not make it an option to not have those restrictions in in the sandobox mode?
This update is bad (apart from the option of having supports going through scenery) and I would gladly not update it until I see something that changes my mind and returns that freedom I liked so much into the game.
Not cool Frontier, not cool.