Rogers has the capability and should have no problems to send firmware updates to modems that are accepted to use on its network.
Cogeco does it with TPIA providers - in fact, when I connected my DPC3000 for the first time the firmware update happened automatically the moment it attained sync - so the fact that Rogers doesn't is just petty nonsense.
I know it's stupid. Rogers updated the sb6120 and sb5101 modems for tpia Before. -- GO BLUE JAYS!