A Yates crashes at UAE tour and wanders around thinking he's Ethel Merman and that was with a standard helmet. Thnik of the consequences of Visma's new aero-hat. We had Küng and his spectacular crash when he could n't see where he was going.
A helmet is to protect a rider not look like something for Haloween.
These helmets seem to have decent visibility due to the huge visor, and there's so much foam I'm guessing they're good at protecting against a direct blow as with kungs crash. Whether they might act as a lever to rip ones head off in certain scenarios is another question.
Also, don't tell me that your objection is about safety because you'd laugh at a full face helmet or elbow pads. The knee jerk reaction is about tradition and resistance to change. What we need is a tony hawk of cycling to come along and make pads cool.
The real mistake giro made here is making too big a leap forward (forget the poc one for a second, which somehow flew under the radar for 12 years). If they released this helmet gradually by making it a little more elongated each year, no one would say anything.
Also no one seems to have noticed met that has been selling a "wide body" helmet for years. It's round but it's like twice as big as necessary. They look like a bunch of bobbleheads in the TTT, and based on results that helmet seems to be doing the job this year.