Not a bad thing honestly, whats nice about high frequencies is lower penetration. More access points, lower power, overall better signal and less interference. Line-of-sight microwave for covering distance.
I am interested in knowing what's the bandwidth to transmission power ratio of the device. If it's low enough, it would be revolutionary for IoT devices.
347 Mbit/s maximum. (But don't expect that at 9.9 miles...)
The "WiFi HaLow"name itself indicates lower power usage than traditional Wifi, largely because it uses the 900MHz band instead of the 2.4/5/6GHz bands.
Likewise, it isn't compatible with existing WiFi client devices that don't operate at those bands.
That's pretty good given (as far as I know) the main use case for HaLow is for low bandwidth, very low power use cases, like for IoT devices and other things you'd use Zigbee or Z-wave for today, including devices that run for years off a single button cell battery