I'm digging the show. My wife is asking me about the game to compare, and I'm keeping my cards close to my chest, trying to remember if I ever spoiled anything in the past. I played the sequel after we started dating, but not in her presence.
One thing I'm aware of is that, in a game, you're inhabiting the person doing the morally ambiguous things, and The Last of Us wasn't like Mass Effect where you could choose to be good or bad. You were Joel, and that meant you did some stuff that I'd never imagine I'd do myself, but by centering you in his perspective you're forced to empathize with him.
Since the show can't do that, I understand why they'd tone down some of the dark actions early on. Like, in the game by the time you meet Ellie, Joel has probably already choked out a handful of people, and Tess has shot a helpless dude.
And on the third hand, when TLoU game came out, people weren't burned out on tragedy porn in zombie TV like many are now thanks to The Walking Dead. You've got a different audience expectation to play with.