My employer, and many others, have a no J policy. Period.I'd say most employers have a no J policy for domestic, but we're talking about international here. And I'm guessing you're choosing the Y fare based on (in order):
1) flexibility
2) increased SCs
3) upgradeability
Our parent company was trying to get us to drop our 'Premium Economy on international' rule, and our CFO said "you can do that if you want none of our staff to ever travel". The parent company is based overseas, and forgot that to get anywhere for us (UK or US) is a 14-22 hour trip. The Premium Economy rule quickly stayed in place. Even with that, we have strict dollar limits on the W class seats. If it's over, we have to pay out of pocket, or go back to Y.