Lion Pilots do share the sectors with captains.
Look a 250 hour fresher is never gonna be fully ready for the likes of a B737 straight out of flight school.
I am certain that the first 12 months must be very hard on these guys, & I am certain that a few would drop out, but after this time I sm sure these chaps are confident operators of the machine.
Wether its right or wrong way is not important, im certain that these pilots have more important career goals other than to keep the readers of pprune happy.