Speed derestriction has nothing to do with this scandal.Chris, I can't imagine Bosch would be party to any modification of their ebike drive systems enablement to exceed state or federal speed limits; here in the US or in the EU. No way, not after they paid hefty fines stemming from the VW diesel-gate scandal, which eventually wound up even affecting Fiat Chrysler years later. Having grown the ebike revolution, starting in Europe and spreading to here in the US, they are not going to risk another similar scandal within the ebike industry in regards to breaking speed limits set for these bikes.
I don't think any manufacturer can be held responsible when a 3rd party modifies the hardware. The problem is the manufacturer , VW, itself tempered with the monitoring device to bypass the regulations. It is claimed that Bosch actually helped VW in doing doing so.
The speed limiter is an entirely different issue since it is not illegal to ride over 20mph everywhere. So why is there a speed limitation in support if I take the bicycle to a private property or ride it on the road? Companies like Bosch, Yamaha etc. seems to be using this as an excuse to price discriminate. You pay a premium when the Bosch motor is derestricted to 28mph. Bosch cx is limited to 15mph in EU and exact same motor is limited to 20 mph here in the states yet if you bring your bike from EU you can not update the firmware to change the limit to the 20mph.