That makes the ebike barely worth it

Eh, I wouldn't go that far. As advocates very often say: ebikes aren't for making you go faster, they're for helping you go further. And the evidence bears that out: ebike riders do tend to ride further than regular bike riders do. They go about as fast as a casual cyclist usually will on the flat, and much faster up hills. It's not about speed, it's about convenience.

That said, I have advocated here in Queensland for increasing it from 25 to 32 km/h in the past, to bring it in line with America's 20 mph. And more recently I used my submission to a parliamentary inquiry to suggest a 35 km/h limit for users with a licence (the context here being that the government is proposing a law which will restrict ebikes to 10 km/h on footpaths and shared paths—which make up over 90% of the things called "bike paths" in my city—as well as requiring a licence for all ebikes, even EN-15194 25 km/h ones). As a stronger cyclist, when on flat ground I tend to average about 30 km/h and can go above that for reasonable periods of time, and I don't think it would be a safety risk for responsible adults to go just a hair faster than that.

But I really do want to emphasise that speed is not the primary advantage of an ebike, and it shouldn't be seen as if it is.