Mario,
Normally I would agree with you, I am sort of in your shoes about getting used to things that do not feel right about. Not on this one.

Since you are using Cakewalk, I will give you a Cakewalk example of what I mean. Probably most of people who use it, taking advantage of 15%-20% on average of what this program is capable of (including me). I do not like amass of buttons, it makes me dizzy.
I tried/bought 3 versions of Cakewalk during past years. Last one was "Home Studio". I figured, it does everything I need. It was far cleaner than Sonar X and that is where I stayed.
Then Meng gave away Platinum... Free is a good price, especially for the program that I like very much. It has tons of extra items that Home Studio did not have. Is it bad? I do not feel that way as one day I might want to try something that I have not tried before.
Just as with previous version, I customized exactly how I want it to be on the screen. Getting rid of all the modules, buttons and other things that I most likely will never use. Now, every time I open the program it has just the stuff I need. It smiles at me and I am smiling back.
So, my thoughts about "merging" are based on that... That you can have the 2 in one option, but customize to see, what you want to see. But if you do need to do something with composition other than one program can do, it would make sense to everything in one place.

For the "diehards" and opposition, this will most likely never happen and benefit of "merging" is just my humble opinion. Please do not stone me.