Yeah it is, and it's their fault that it is.
Google has no right to say the open web is in decline, when they're the main cause of it, this is basically them saying, 'Yeah, we won this stupid war that we started, screw you, peons,' this comes off like if MS broke WINE and then admitted no one uses desktop Linux anymore, it will have been their faults that hypothetical scenario happened, this is what Google saying the open web is in decline when it's largely their fault that it is comes off as to me.