Day one patches are a thing, even on consoles. Should they be? No. But they are.
There does seem to be a reliance on day one patches, but I think you're making the problem out to be worse than it is. Plenty of games were shipped with game crippling bugs before the last few generations of consoles: from ET to Superman 64. And the complexity of games has only increased dramatically.
Additionally, just because a game company can update their game doesn't mean they can do it cheaply. Up until 2013, Microsoft charged thousands of dollars to certify a patch for a 360 game.
What you have to remember here is that Her Majesty's Gov't especially Theresa May and David (Knob in a Pig) Cameron can't even spell "internet" let alone being able to draft any coherent legislation to control the Internet.
But isn't that the scary part? Here in the US, are legislators aren't tech people either. When they write bills, the CIA, NSA, and others that have tech people get to say what they're doing is legal because the legislators didn't know enough to say it should not be.
The shortest distance between two points is under construction. -- Noelie Alito