I am curious to see how those facial liveness check systems will adapt to this reality. They are a key pillar in the KYC and fraud prevention process in the fintech space.
There's also Postident (which involves walking into a post office and showing the clerk your ID card in person) and eID (which requires a compatible smartphone and uses the digital data on the ID card itself). Video ID is pretty ubiquitous these days, so I'm not sure why you think it "doesn't scale".
If you're suggesting alternatives that only rely on biometrics, I don't think those are sufficient to fulfill the requirements of anti-money-laundering laws in Germany even if American KYC laws might allow them.