if it's moving then it's active. I'd leave it awhile yet.
If it was still, i could with confidence tell you to unplug it and plug back in... but with it 'active', I can not suggest unplugging it without personal experience in doing that.
But one thing I can say, is that I have interupted a reboot/loading with a few FTA receivers in the past and had no harm...
Your decision bro , but wait another 5 minutes before you do anything.