Considering that a blocked network will likely be suffocated regardless of the payment model, I would suggest attempts to prevent blocking are concentrated on first.
Safe net has been designed to withstand and adapt to attempts to block it. I am pretty certain that its traffic already looks pretty generic and I’m sure more work can/will go into this area. I would appreciate a comment from @maidsafe on this, as it would be good to understand specifics. There were pretty big debates about this in the past, specific to Rust modules to disguise the data.
Safe net has a goal to blast through the great firewall of China. If it can do that, surely that sets the bar rather high?