The move is designed to make more titles Epic Games Store exclusive…
The Epic First Run programme allows developers of any size to claim 100% of revenue if they agree to make their game exclusive on the Epic Games Store for six months.
After the six months are up, the game will revert to the standard Epic Games Store revenue split of 88% for the developer and 12% for Epic Games.
I already block ads and advertisements, so the game will just be completely off my radar for another six months until I see friends start playing it. Eh. It's far too much effort to try a new platform after the dumpsterfires of Origin and Uplay to play 1-3 games.
The only game I'd actually install a new launcher for would be a new Half Life Game.