I've seen various videos of their horses online and most of them are obviously unsound. Unfortunately they aim their sales at very novice owners wh know no better.
Apparently Rambo advise you shouldn't leave a horse unattended in the stable in one of these because if they roll in one you can never get the bedding out of it agai
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Have given up with PE as have had a couple that leaked plus they are getting so expensive now. I buy Maxima Equestrian turnout rugs now as they are much cheaper, lighter when wet, don't leak or rip and come with detachable legstraps.
Some horses do seem to be more prone to mane loss than others but some rugs are definitely better for reducing rubbing than others. I use Maxima rugs now and find they don't rub out mt horses manes.
What a terrible thing to happen. I hope the driver is brought to justice although the penalty is unlikely to be harsh enough to fit the crime. Poor horse and poor owner.
If a horse is in the stable for some hours of the day and out for some hours of the day and getting some hay and some grass in the field then I can't really see why there would be a problem if they had to stay on a few more hours overnight, whether that is for a show, veterinary reasons or...