It has been very hard getting improvements to the interface as there are many long time users that don't like change.
Even if that were true, which I dispute, what would it matter? Can’t PG Music continue to improve as it sees fit?
Yes, of course they can. And paying customers can express their concerns and desires. Here on this forum most folks tend to be big fans and many do indeed actively defend the product against perceived slights even when those "slights" are valid gripes. (Admittedly, it has gotten better around here since I got here in 2012.) This product is judged a lot more harshly on other public forums where it is discussed.