I don't know about the "much easier", but the thing is just that different coticules can have distinctly different properties. I have tried coticules from six different strata, and one of those was 'bad', as in unsuitable for honing, something which the seller actually mentioned, but I bought two together in a lot. I still haven't figured all of them out exactly and I have my preference, but I have gotten great shaving edges off all five of them. Also from four BBW sides as well, by the way.
I don't see the need to scare people away from naturals. It's just a steeper learning curve (Yes, I understand that this is why the general consensus is to recommend starting on synthetics) and a choice that you make: do you want to make it more difficult/challenging for yourself from the start? I answered "Yes" to this one straight away and haven't regretted it. But that was my choice. Others will choose otherwise.
And I don't think anyone in their right mind would venture setting a bevel from scratch on a coticule (i.e. breadknifed/Ebay dull). But for refreshing/re-establishing a bevel most of at least my coticules work (speeds differ, true), within ten minutes.