Can you share that YT video. That might be interesting to see.
I agree that I prefer the modern bedchair. Thankfully I missed out on the sunlounger heyday.
I've got a Trakker RLX flat 6 and I don't have any problem with the big snooze I've got on it. There's only 1 strap across the centre with a hood both top and bottom and no issues. I've even got one of the big trakker pillows on there with a strap around the head section, again with no issues. I don't think having 6 or 8 legs should cause problems to sleeping bags.
A sleep system may be able to reduce some weight, but I suspect for the biggest manufacturers it's there to turn it into a disposable item. You can't take the bag off to wash it. If the zip breaks, you've got to replace the whole top or complete bed. With a separate bedchair and bag, you can swap out parts as necessary.
As I suggested earlier, I wouldn't be surprised if a less honourable reel manufacturer tried to make it so the reel was sold with line and you couldn't replace it yourself. Anything to lock you in.
Look at the way tech and the car industry has gone. I don't doubt they are much more advanced and have a lot more advanced features, but I don't want a subscription for heated seats/headlight arrays or anything else and please stop snooping on what I'm watching on my TV thank you. That's just creepy!
Of a certain age? I'm in my early 50's. I wouldn't have ever thought that description would apply to me, at least not until I'd retired, but maybe we were brought up in a different world (I first came across the internet and email in 1993 when I started at Uni and the only GUI web browser was NCSA Mosaic running on Sun SPARC computers). I don't want to be beholden to the uber wealthy and tied into subscriptions for everything. It may cost me more initially, but I still buy CDs/Vinyl for music. I then have it for a lifetime. If we just allow it to happen then we'll loose everything we gained over the 20th century. The NHS, social security, extended lifespans etc. We've allowed our politicians to be influenced by those with money too much and that's on all sides.