Except when they train customers not to buy early releases, it reduces revenue.
For a lot of these AAA PC games they often get bundled with GPUs purchased around the time of their release. The secondary market of these vouchers plus pre-release sales make it so that being a zero day gamer doesn't necessarily mean paying full price.
The difference between the consoles and the PC is distribution, not conditioning. Unlike on a console where the only way to get a game is via disks or the network of the console maker, with PC games you have Steam, Green Man, vouchers, etc. These points of distribution compete which lowers costs. On the flipside the gaming maker pays a smaller amount in licensing on the PC platform so its all relative. They can afford to make less per game sold.
Which makes consoles more profitable than PC, hurting the PC games.
I think there is no debate that consoles are more profitable than the PC platform. It has been that way for a while and shows no indication of stopping this generation.
But I don't see how that "hurts PC games." This isn't a null sum game, console game sales are not always at the expense of the PC platform. It doesn't matter if the consoles are more profitable, it only matters if the PC platform is profitable enough to cover the costs of porting the game.
In fact I see the current console industry as a huge benefit to PC gaming. The console's profitability gets the games made, and the console's x86 insides make the ports easier to do. This generation we see games like Metal Gear Solid being released on the PC too. That simply didn't happen in previous generations, but for this gen the barrier to port is lower than ever.
The only way anyone can even possibly frame these developments as bad is if you like PC-only genres (which have to compete for dollars in a port-driven market), or you have some team master race mentality that demands to see consoles get crushed (#pipedream). In the scheme of things it has never been a better time to be a PC gamer thanks to console ports and Steam sales, and soon the innovation of Steam refunds will drive up the quality of ports as well.
It is a great time to be a PC gamer.