It's not much more than a one hour drive from Bendigo to Melbourne. At worst two hours in peak hour.
6:32 train gets to Southern cross at 8:30 for $35.00 first class one way.
Struggling to see how $130.00 each way is going to be value for money for a 30 min flight (plus check-in times, getting from EN to anywhere useful, etc.)
Good luck to them, but I can't see the numbers working out.
DIVOSH!