In what Overwatch developer Geoff Goodman is calling Hook 2.0, a number of changes to Roadhog's hook are now detailed.
First, in a massive change to Roadhog mechanics, his hook will now pull enemies directly in front of Roadhog rather than in a straight line towards him. This means that players will be able to turn slightly to the side to dictate where the player will end up. But before you go theory-crafting about dumping people off cliffs, there's a cap as to how far you can turn, so you aren't spinning 180 degrees to place an enemy behind you.
Secondly, there's now a line of sight check that will break Roadhog's hook if a player is able to dash out of sight just after being hit. This line of sight check is now checked from Roadhog's position, not the hook's - meaning the hook won't connect to targets Roadhog shouldn't be able to see.
"Overall these changes will likely make Roadhog a bit weaker," Geoff Goodman said. "But we'll evaluate his performance once we get people playing him and make adjustments as necessary."
These changes should be live on the PTR shortly, as soon as this week, according to Goodman. Meanwhile, you should probably improve your aim more with our guide on how to hit that hook.