Dear Devs
When I have a class at level 100, full talents, and I copy a team from someone who’s less than that you kindly show me that “any” will for for these talents. But you insist on resetting mine to none! Why must I manage this? If “any” will do, please leave what I have set alone!
It’s another one of those simple things (a simple check that would take a competent programer about 10 minutes to do) that won’t get fixed because probably nobody is working on that part of the code and it’s just not a critical financial issue 
Its an ungiving game; period.
Well, yeah, they can’t really monetize it.
For the record, if all the Talents are set to 0 in the team code, none of your existing talents will be changed.