You have totally missed the point. I guess that's why you're called Dreamy. And naming a youngster who has only played in 8 PL games in his life? If you want to play that game then we still have TWELVE players on the books that won the PL in 19/20, won the CL, FAC and LC, and have contested the PL closely most seasons since. That's tons of experience for us too. It still doesn't mean that history is a predictor of the future (this season) as every winning team eventually fails to repeat.
City now have players at the level of an aging Walker, or good players, but not elite as others were in previous seasons; such as Akanji, Alvarez, Gvardiol, Grealish, Nunes, and Kovacic (and I won't even bother with Lewis who you used as evidence of experience and has just 8 starts to his name). Just below the first team level you also have players such as Bobb (5 PL games), Lewis (12 PL games over 2 seasons), Ortega, Gomez and Phillips who are not going to contribute much at all.
The key takeaway is that some of their key players are on the decline and / or suffering major injuries (KdB 32 & Walker 33) or not playing at their previous levels (Ederson, Dias, Ake), the evidence for which exists in their constant defensive lapses not witnessed to this extent since we strolled the PL. This City squad is nowhere near the level of those previous seasons you are harping on about, where they either ran away with it or pipped us to the post.
So whilst City are undeniably still in the title hunt (and of course they could win it) the constant repetitious, and frankly ridiculous, assertion by some posters (you can put your hand up) and media commentators that it's possible, nay likely that City will go on a 20 game winning run in the new year, is a strawman argument based on historical data but totally ignores current form, current squad composition & ongoing injury issues (now exacerbated by age and will necessitate a reintroduction period) that have annually affected certain players (KdB & Haaland) as well as other factors that I listed above.