Like with any driver, implementation matters. Modern dome tweeters are far far better than described there, and some ribbons are notoriously splashy. That is, have a lot of distortion which makes them sound extra airy. Also, not sure how many ribbons out there have wave-guides to begin with, most of the ribbons I can think of do not. Among the most expensive, RAAL, for instance, I can't remember seeing one wiht a waveguide.
If that's what you are looking for I encourage you to look at the top-end Mundorf capacitors as IMHO they stand out because of this kind of coloration.
Also, a GOOD AMT beats them both for high frequency extension, low distortion, and power handling. The Beyma horn loaded AMT is particularly interesting for wide dispersion.