I'm exclusively a PC gamer and I'd even argue that this is false. Exclusives are bad for the industry and bad for gamers in general. It doesn't matter which platform you can afford/desire.
Even PSVR might be coming to PC. Many Xbox games are coming to PC. The industry seems to be turning its back on exclusivity. What does Facebook do? "Naaaa, we can make exclusivity work."
When industry leaders are aborting a strategy, it isn't a good strategy. What Facebook is doing makes sense only 5 years ago.
I totally agree that for gamers it's a loss. Most skip games on that other platform, but some grudgingly buy an Xbox or Playstation just for one game.
Another very stupid tactic is making PC gamers wait like Rockstar does with GTA. This is especially bad given the history of the GTA games and them being PC first back in the day.
Don't they have both have very similar specs and hardware (ignoring input for now)? Also, the whole point of drivers/SDKs is to abstract hardware differences away so software can work on a variety of hardware. It doesn't strike me that they are so different the drivers/SDKs can't cope with the differences. Given Revive lets Vive users play Oculus locked down games and both the Oculus and Vive are supported on Steam it's clear their hardware differences isn't a huge deal.
VR headsets on the PC are just another device like your keyboard, mouse and monitor. I haven't heard of an LG-monitor-exclusive game before, so why should it exist for VR?
It's different on consoles.
Firs there was DRM and now the insistence on exclusivity. For some reason Oculus seems to have forgotten their promise of an open ecosystem, and I hope it's not some Facebook influence Palmer is unable to fight against, and if that's case, I hope Carmack isn't getting pissed. Remember, John is the driving force behind GPL'ing all the engines/games at id software. It's reasonable to doubt any future GPL id software release since John left.
Between the Vive providing an arguably better experience (at a hefty price) and Oculus alienating PC gamers left and right, I have no idea what's going on in their management department. It looks like the wrong people got control.