^
And like MB did with E-class & CLS.
Same platform, different cars - different purpose, different clientèle, different styling - in MB case even the design is different.
The problem is you've seen the CS concept before 7er was launched ... Therefore F01 seems so "restrained" - due to many expected BMW will launch a CS carbon copy under 7er badge.
Again: E65 styling was much more restrained the the one of F01. Although due some particular design details (boot lid & pre-FL headlights) the E65 was declared "controversial".
E65: restrained but still controversial
F01: not controversial but much more exciting, dynamic & modern