PoS is not as decentralized as PoW, but decentralization is not as important as it used to be.
Really, what logic supports your statement?
FYI:
decentralization is not as important as it used to be
It is : if Single Point of Failure is a Concern , which with any system you want running 24x7, it is most definitely is a Concern!
Well, when the first cryptocoin was setup, it had to be decentralized, because it could have easily been shut down if not.
Now . . . why bother to shut down a crypto currency, because all the users easily switch to another. As long as 1 decentralized currency remains, it's not so important for others to be decentrailzed too.