It sucks for SBF, but keep in perspective the suffering and hardship he's caused lots of people by costing them their savings.
Just because a long sentence sucks doesn't mean we should forget what criminals did to deserve it and all the suffering they caused their victims.
In some cases you can argue that the punishment is out of whack, but we're talking about someone who embezzled billions (an incomprehensible amount of money to most people) in the pursuit of his own greed and enrichment.