So this is definitely not true and if you still use FCP 7 every day, I doubt you are the pro you claim to be. It's not even supported anymore. I can understand the reluctance to switch (I was for years) but to say that is doesn't feel like a professional NLE when you just admitted that you use 7 is disingenuous. You have no idea how it feels or how it works.
On the side, I teach FCPX and Premiere and soon Resolve (basic NLEs).
This was the norm right from 2011 as far as FCP legacy users.
It used to bug me but after all these years teaching and dealing with clients from all levels, its safe to say that no one I know that makes any real money in this medium has a running copy of FCP7 except for me.
I still have a second OS on my cheese grater 2012 that runs it and at times I will get older clients asking me to convert it to a recent NLE.
Anyhoo, if were going with what works then yes Premiere works...at times.
I can do a whole topic of what doesn't work with if I were to pit it against FCPX and Avid.
But keep in mind when I say "doesn't", I just mean that it doesn't work for me.
In this day of age, you need to know how to use more than one type of tool.
I finish a lot of different types from shorts, music, long format and corporate.
You have to be ready to take on what your client throws at you.