I can't imagine an install without concrete, either. Not only to have it vertically stable, but to keep it from rotating, as well. Having an immovable mount is critical for any satellite connection. When they upgraded me to Gen4 they put the new dish on the same pole the old one was on, but it had been installed really well in 2004. I wouldn't be able to move that pole a millimeter without a sledgehammer. Both of my Hughesnet installation experiences have been very good.
Ryzen 5 3400G | MSI B450M Pro-M2 MAX | 16GB Corsair Vengeance DDR4 3000 | XPG SX8200 Pro 512GB NVMe | Windows 10 Pro