Training resources are a hell of a lot better than they used to be.
Real emergencies are a hell of a lot rarer than they used to be.
There is no longer the same relation between flight time and experience that there might have been 30 years ago.
The vast majority of accidents occur because of an error chain, and anyone can break it. Even the pax in the back at Kegworth identified which engine was malfunctioning.
I've flown with a lot of (originally 200 hour) cadets, and I'll tell you, if you select the correct people before you train them they get real sharp real quick. It was an honour.
Frankly the 'one man bands' here are simply identifying their own shortfalls as leaders: namely the inability to make use of the skills of their subordinates.
pb