Hmm, I'd disagree. The fact that Anapaya Systems (the for profit company mentioned) has the only commercial implementation/adjacent software is a problem, yes. But "snake oil" doesn't quite match up with the fact that SCION right now provides the backbone for the Swiss financial network moving 200 billion CHF each day [1], so at least some level of workable technology has to be there. And for no one to be taking it seriously, there's a decently long list of multinational ISPs at the very least taking steps towards offering SCION to customers [2] (e.g. British Telecom has expressed enough interest that they have various recent marketing videos on Anapaya's YouTube channel). Finally, I'm not sure what you mean regarding the "scummy inclusion of block chain / crypto" - as someone who has worked on SCION-based projects I never heard anything about this. Apparently a blockchain company invested in Anapaya, but that doesn't really change anything about the protocol itself, does it?
[1] https://www.scion.org/ssfn-scion/ [2] https://www.scion.org/isps/