I haven’t had the radius removed on any of my Tikkas. I prefer shouldered barrels in general as a matter of personal preference so it was never a question for me to remove it.
As others have said, removing it allows you to use the more commonly found 1.200” shank prefit barrels and barrel nuts, but to me, I would be paying for custom shouldered barrels anyway even if there weren’t any shouldered prefit options.
Really just comes down to different strokes. Both have their merits and it’s up to you to decide which is going to suit you better in the long term.