We could literally do that for any team. Take out the times City scored 5 and 4 and they'd have less.
Their goals are more evenly distributed than ours though. To do a direct comparison: their three highest scoring wins were three 5-0s. That's 22% of their total, as opposed to our 33%. And it's a City team that spent the entire season playing without a centre-forward and being praised for their defensive solidity. They're not exactly the goal machines of 2017/18 either.
Also, I didn't see you making the same point in the "our tough start to the season hides our progress'" thread
Even though it applies there as well: if you take out three horrible games, any team's season looks much better. Those three games are also regularly cited to highlight our defensive record in the other games, with the reasoning being that after those early games, we haven't conceded a lot. And once more, you could make the same argument: if you take out the games where a team conceded a lot of goals, their defensive record will obviously look much better.
Either every game counts no matter what we're talking about, or you have to allow discussion on context and specific circumstances. Our attack is very often unspectacular and struggling to create chances - and sometimes it explodes, and runs rampant. We have a high 'top' level in attack - but a very low 'bottom' level.