Not seen as a criticism, don't worry.   There are two things in play, first of all a serious amount of work for P3D is simply not drag and drop into MSFS. A lot of material is new, and what is reused needs to be adapted. Secondly, all developers had to invest a lot of time in getting to get to grips with the new platform, it really is very different. That all took a serious amount of time and that needs to be paid for in some form.