That was my immediate thought when i first saw these. Some sort of tie that connect both devices and wraps behind the neck.
How about extending it with a sort of string that reaches down to the phone and carries audio to the Airpods independently of the wireless connection, so you were no longer limited by 5 hour battery life?
Seriously - although looking at the pictures makes me skeptical I'm not going to assume bad design based on a photo. I'd give the "sticks" a chance - I could see how maybe they'll help rather than hinder. My real concern is the one-size-fits-all idea: personally, I can never keep earbuds in, and without a tethering cable fear that one of these would end up lost in short order...
Seems to me, the problems with these are fundamental to the concept of totally wireless earbuds: no space for battery, easily lost and where to put controls/microphones.
In the past, I've used Phillips noise-cancelling earbuds on long flights (not great audio but good enough for flights) - they had a neck cord, a "pendant" with the battery and electronics (& 3.5mm lead to the phone - but the same configuration would be good for Bluetooth) & each "bud" had a small cable leading to the neck cord - so you could just pop them out and they'd be safe. Those were
vey practical for that purpose.
Oh, and if you're on a flight, what if you want to use the in-flight entertainment? My current full-size-ish Bluetooth cans also have a 3.5mm lead.
Still, horses for courses, and some people will enjoy pretending to be Lt Uhura... (Hey, the AirPods mark the 50th anniversary of wireless earphones!)