Yes, I have seen that blurb long ago Allen, but you are being far, far too harsh since it's all good sense but for possibly one point and I refute your statement at a) above.
Consider these points:
E-bike riders do not have to work so hard and often say they use them to avoid sweat problems. Accordingly cooling is not so great a problem so a wrap around helmet which gives far more protection is viable for them, so it qualifies as an e-bike specific design.
They do have good ventilation provision, they do have a comfortable looking fitting and plenty of type choices to aid that, and they do have superior safety over the pimple-perched-on-a-haystack things that many cyclists use. The price range from £25 to around ten times that compares with some of the things that cyclists currently wear, so par for the market. Check out this page. There is no rule that says people have to undersell market practice.
The seemingly odd bit is the reference to "future-retro styling", but this particular way of marketing the combination of old and new is all the rage currently. Everywhere retro is being incorporated in modern products, DAB radios looking like grandads old wireless set, a Minox digital camera looking like their spy camera of the early cold war years, radio-controlled digital pocket watches, baths on legs looking like their 19th century forebears. In this case, modern helmet materials and construction design are being combined with the old styling of helmets like the 1950s "Corker" and those that horse riders have worn for many decades past.
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