I think it's way too early to be calling it like this. Yakemchuk is a player with a ton of variety in his skillset. He's a very rare player that can shoot, can pass, has wicked hands, but is also has the frame to be a dominant physical presence as well. Parekh is much more one-dimensional in comparison, he's all about his game with the puck in the offensive zone. He's got a lot less to refine and work on compared to Yakemchuk, who was called a very raw player by just about every scout leading into the draft.
You don't draft players based on how well they do in juniors. You draft based on what you think they have the potential to be in the NHL. Development isn't linear, and it won't be a surprise if Yakemchuk takes a bit longer to become an impact player, considering he's going to be a player that will be able to contribute in every area of the game unlike Parekh who is essentially a glass cannon