those guys at presonus sometimes coming with brilliant ideas,great thinking of making easy workflow for various situations. 
Irrelevant.
It’s all in Wavelab. they would never integrate stuff like that in Cubase.
I have Wavelab (I’ve had it since version 1) and I use studio One for mastering all the time. It’s very intuitive and I love that you can add meta data and pictures so easily.
not expecting to have mastering tools as strong as in wavelab or studio one in cubase, just saying presonus really makes great new innovating features that improves workflow in very logical and useful way.(steinberg too no worry 
)