Well from the US Playstation sites the OP linked all of them have it on their main page except GoW. Its probably nothing but if the logo was removed and it was previously there then yeah it can become the cause of some sort of smoke other than that if it was never there then yeah nothing changed from before.TLOU2 page doesn't have it too.
The Last of Us Part II
Go on the road again with Ellie and Joel in an epic and emotional journey, exclusive to PS4.www.playstation.com
Looks like they're changing the branding from Only On PlayStation to PlayStation Exclusive