So why do all of the regional train terminate at the two stations at the right and left when ILR they continue.
MSB is from an era of TSW with weird and not so fantastic timetables as we currently have. It is in fact a good candidate for a timetable overhaul, there's a lot of missed and new potential.
MSB seems to have one of the more imaginary timetables for the passenger traffic. There would have been a chance for an update when the freight services were adjusted, but that was unfortunately missed.