"CC is a toy and no serious photographer"
It's such a toy it got tone curves and split toning today - and I don't believe Adobe has finished yet.
You make yourself looking stupid trying to deny that Adobe introduced a cloud-only LR and a cloud-only plan, and its PR is promoting it full steam.
And it's not aiming it at amateurs only. Sure, it's still a work in progress and not yet ready for many professionals, but it's a clear step in that direction.
Sure, Adobe doesn't own your photos - I never wrote it, if you don't understand the joke "all your photos are belong to Adobe" you should be very young...
Yet Adobe also introduced Adobe Sensei for "auto" settings - which, not surprisingly, works "by analyzing your photo and comparing to tens of thousands of professionally edited photos" - which is another reason why it wants photos in the cloud.
LR CC does shares almost everything with LR Classic and Adobe Camera Raw (ACR) - they use the same processing engine, it's just the GUI and non-editing functions (tagging, printing, geolocation, etc.) which are different, or not available.
And yes, you can use CC and Classic at the same time:
Maybe you know a lot of photographers, but your knowledge of Lightroom is quite limited.