And where do you see that? From the specs all it can charge from is the standard microUSB port that would be limited to 10W and thus need about 9h.
If it could charge from the USB-C port and accept a high power supply then yes, but that doesn't seem to be the case neither from the description nor the comments. There's an "adaptor input" mentioned on a graphic but nothing says what it is, and in their video they precisely say you don't need to carry a power brick to charge it, so it makes little sense..