The main and biggest problem of thsi game is that the map is too small. Industries are too close to each other. Cities are too close to each other.
So we have to squeeze all kind of crossings all over the place and we have to make sure that they are speedy enough to to affect your line performace. At the end you end up with half of your rail newtwork beeing made of junctions, intersections, bridges, etc, etc, etc.
So it’s normal to want all kind of tools like diamond crossings to save space.
Please give us the proper crossings. but also please don’t ignore the fact that the map is simply too small for trains. This is the main issue and it should be given priority.