I don't think there's ever such a thing as comfortable though, certainly no more than a couple of dead rubbers at the end of the season. And results mattering is a key attraction for top flight sport. When you're struggling you need wins to get away from the foot of the table, higher up you're fighting to get into or remain in contention. The first team is where you should play when you've developed, not where you become ready, IMO. It can be a bit catch-22, I admit.
Over 10 years of SL our player development didn't really deliver, I think it has to be admitted. With the odd exception. The criticism started laughably early, but tbh we seemed to go backwards over time in this area. Hopefully the current/next crop fare better than the last 2 or 3, and the CoHA works out well.