Sustainable means that the owners can SUSTAIN the amount of money they need to put in. It does not mean and was never intended to mean the club was Profitable. Previous owners could not Sustain the amount of money require to be put in. The Bros are saying that the amount they need to put in this year is less than they budgeted because of the increased attendances.
As I keep saying, and falling on deaf ears, the two owners are paying about £3m/year for a very expensive season ticket, but it is their hobby. Just because £3m sounds a lot to you (and most of us) it is not a lot for those that are rich.
Stop panicking.

