Exactly the same thing happened at Lauda when they became Austrian.
Many times I used Lauda to get to Europe, the price was good the connection was great and the total travel time was usually 6hr less than QF.
For years they ran the 777 chockers and made money, then Niki sold his remaining shareholding. Everything was rebranded, the A340s were ditched and surprise surprise more tripples came.
Then some how the route was suddenly loss making...... went on for 12 months and management pulled the route which no one could believe.
During the recalculations when the fuel prices spiked some bright sparked never included the freight revenue.
They pulled a perfectly viable route, because some bright spark did not include the revenue that was not from his domain.....
Unfortunately the rat is headed the same way