I don't have any experience with the product, but from what it says on the link you gave, I wouldn't count on it working. It mentions the incompatibility with satellite service.
Did you ever run that procedure and find out what's going on with your data depletion? Just curious.
As Corrosive mentioned the Verizon extender is not going to work very well if at all due to the latency inherent to a satellite connection.
No matter what you do, your signal has to travel 22.300 miles up to the satellite then relayed back down to the ground at your Gateway location ... the return "data" has to again follow the same path.
The speed of light applies here and about 580 ms latency is about the best you can expect.
If a device is going to use your Hughes connection, it will be subject to this delay.
I have been on the phone all day with Hughsnet's Home Tech Support. Hughsnet does not support VPN. Therefore cellphone network extenders do not work with their system. So either I carry two internet providers so I have the capability to connect our network extender or I find a different way to make phone calls. Not sure how we are going to go right now. But I spent a lot of money to get a service that doesn't cover our needs.