You know what? Get ready for a surprise. I think you're right, at least about the first part of your argument.
I went looking for what a successful team did last year, and by looking first at the Dodgers I stopped because I think I found your "poster team" for running the same starting lineup out there successfully. Indeed, they were so confident in their roster that they went with only 12 position players, meaning one backup catcher, two utility fielders, on Opening Day. 16 pitchers rounded out the opening day 28 man roster. And then they backed up their planning with execution. I looked mainly at April, because that's what we're actually discussing right now in 2023, and the Dodgers' 2022 edition had essentially the same starting 8 (catcher's a special case) day after day. Looking at the players' b-r.com Game Logs, I see leadoff Betts playing 19 out of 20 games in April. Freeman was 20 for 20 as was Trea Turner. Justin Turner was 19 for 20. Muncy was 20 for 20. I expected to see days off as I went down the opening day batting order, but the bottom of the order of Taylor, Bellinger, Lux were in 18, 20, and 17 of April games. And there were next to no "cheap" appearances - occasionally during blowout wins the starters would sit in the 7th inning or whenever, but I think i spotted only one late-inning insertion of a starter who rested.
So it's certainly possible if you have the roster for it.
I think I have to turn my attention to how FalVine have constructed their roster. To make ends meet, our FO has demonstrated a willingness to assume more injury risk, in the name of acquiring top-tier talent. The Dodgers by contrast have the financial luxury to make all their decisions based on bang, not bang-for-buck. Or else, they've just done a great job at accumulating top-tier ironman talent, but being able to pay all April starters but young'uns Gavin Lux and Will Smith above $10M in 2022 couldn't have hurt.
It occurs to me now that the Dodgers might not accept Byron Buxton and his injury history in trade, no matter how small the price. He doesn't fit their profile.
It's hard to do an apples-to-apples comparison but I think the discussion of the Twins 2023 roster comes down to how would other teams deal with the individual players in question. If the Dodgers were forced to accept Buxton on their team, would they work him like a rented mule in CF, or let him DH and have an occasional day off during April. I don't know how to answer that because Buxton is a different player than it looks like LA would even choose to have.