Those were exactly the same chances as Brighton's imo but agree to disagree. Point is, we still would've won comfortable if both teams converted all of their chances, yet people (understandable on here) only seem to think of scenarios in which Brighton scored all their chances and we still miss ours. Fair enough though, I'm the first to admit we were not good enough last weekend but can't complain if you're top of the league without a goal conceded so far.
I don't think it's a case of people thinking you didn't deserve to win (you obviously did) but more a question of did you give them a realistic chance take points? Which I think you did. You didn't create quite enough to put them away comfortably, and you allowed them a decent sniff of getting a point. If you're going to win the title this season with this consistency teams have these days, you'll need to be winning games like Brighton at home so comfortably that 99.9% of the time they never even had a chance. It needs to look easy, like City made it last season, every week just putting them away without ever giving them hope.
Was there a realistic scenario in which Brighton draw that game? Very much so, IMO. It's not the end of the world, every team has poor games, I just don't think you played like title winners. Doesn't necessarily mean you won't win it, but to me against Palace and Brighton you were not great at all, both games you could have quite easily dropped points on another day. Of course you were the better team in both games (you're the far stronger side) but not to the extent where results were a foregone conclusion.
Again, every team has games like that, no side is 100% consistent all of the time. Since we're only 3 games in and I think you've already had two where you weren't great, I don't think we can be talking you up for a title challenge. People are doing so because you made signings, not because you've actually played like a team who can realistically win the league, at the moment you're all hype. 3 games, 3 wins, zero goals conceded sounds great but I do think it's slightly misleading if you look past just the scorelines and see the teams you've played, what happened in game etc.
As I've said before, the next couple of games are crucial for you, tough away ties (especially vs us) in which you can really lay a marker down.