Crashplan isn't forcing anyone into their business service. If anything, they've been pushing Carbonite pretty hard. In their first announcement I'm not sure if they even mentioned migrating to their Pro service.

It's interesting that Crashplan decided to completely close up shop instead of simply capping their plan. I've been moving my clients over from Crashplan to iDrive, and I'm signing up around 90% of them for the 2TB plan because most of them won't even fill that. I was even able to sign a couple of them up for the FREE iDrive plan. The rest I only signed up for the 5TB plan because they had multiple computers they needed to back up.