I wouldn’t say it’s completely insane.
It’s a modification of the trolley problem. The “do nothing” path goes downhill and has a hell of a lot more bodies. The switched path still has bodies but at least it’s uphill and you’ll have a chance to slow it down or stop it.
Proxies aren’t bad they are just dated.
Ironically the big problem with proxies is really that software doesn’t support them properly, usually due to lazy or unknowing devs.