I understand why people wouldn’t want to or even have the ability to download a 20 GB file. They might not have the bandwidth speeds needed, their ISP may shut them down, they might not have the storage space to spare, etc. So I don’t think there is any harm in offering a lower quality alternative. If it’s encoded efficiently by someone who knows what they are doing and clearly marked as a re-encode there’s no problem with it. It will still beat the hell out of the GOUT or a Laserdisc and we want as many people as possible to have access to the OOT right? Not really much of a “preservation” if only a handful can get ahold of it.