A lot of these pitchers do NOT have extended periods of Major League success. There are questions on many of them. You are a Yankee fan, so you are optimistic.
You are more optimistic on Severino than Sale.
Pitchers like ERod and Eovaldi have shown longer periods of success than many on the list of Yankee starters, and of course they have large question marks next to their name, but you seem much less optimistic about other team's starters.
Look, I'm not overly optimistic about our top 3 starters, either, and I'd rather have your top 6 SP'ers than ours, but we both know a lot can go wrong, and both teams can use a big addition or two to the rotation mix. Until we know who those additions are, it's okay to give the edge to the Yanks due to their depth, but other teams will be making additions, too- maybe better ones.
What if the Jays sign Bauer & DJ, and the Yanks add Porcello and a lower ranked 2B/SS?