The fake urgency is what they call a 'hook' and it is supposed to make the player more engaged in the plot. For me, it's more like I'm being dragged into reading a novel that I didn't sign up for, especially because the whole point of Dungeons and Dragons is that you get to define your own character. Then, immediately after you define your character, some shithead writer is instead insisting that they redefine your character for you. Oh, you thought you were going to play a thief with a heart of gold? No, sorry, you have to save the world and your whole existence is now defined by a parasite in your head. You wanted to play an ambitious and callous wizard driven to master the magic of time at all costs? Doesn't matter, your whole character is defined by a parasitical infection that involves tons of overwritten nonsense. You wanted to play a paladin driven to redeem the honor of his family after a terrible crime? Doesn't matter, the parasite is your character now or you have to save your stepsister Imoen and your whole backstory has been written by the writers and not by you.
In P&P 'hooks' are supposed to be written by the players and then used by the DM, and people tend to have mixed feelings about it. But in the case of games like BG2 and BG3 the only things you get to define are your player character's abilities and the game just sort of ignores anything else you do because of the limitations of the design. What's even the point of allowing a player defined character if the game is going to define your character's priorities anyway?