Great idea, but good luck convincing Microsoft of that. If they don't care about people with data caps (us and others), they aren't going to care about when it's most amenable for the same people to download large updates.
The only other options are saving data, or updating the morning of the release, or the next morning, depending on the actual time of the release.
The "technician" knows not of which he speaks.
Taken from the Hughes Fair Access Policy:
How is my usage calculated?
HughesNet counts each byte of data sent from, or to, your terminal. This includes packet headers, re-transmissions, and other standard overhead which is part of any IP communications. However, when HughesNet is able to apply compression and reduce the size of the data you send or receive, only the compressed (smaller) data is counted against your usage
That can be read in full here: