He says that the Pioneer Edition FreedomBox is more robust than a "bare" Raspberry Pi 2.
The point is that the Pioneer Edition FreedomBox has a backup battery which provides 5-hours of power, while a bare Raspberry Pi does not. The battery is what makes the Pioneer device more reliable in cases of power outage.
There are other early adopters running FreedomBox on the same microSD card since 2015 but they had stable power supply or backup power.
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