The Peloton one seems to be higher and with ample space at the bottom for things to get sucked into
This is not an absolute fact, but just your opinion. People are allowed to disagree with what degree of design compromise constitues "unnecessarily dangerous". Furthermore, they are allowed to object when some people try to impose their ideas of what's right and wrong onto others.
Personally I think Peloton should be able to sell treadmills with circular saw blades at each corner if people want to buy them. Who are you to decide what's right and wrong for other people?
Are you even serious?
The treadmills at many gyms lack a guard like other commenters suggest it should have. I can buy one for my home if I want.
I don't think this is the point the commenter above was making, but if it had circular saw blades on the corners, the pitchforks and torches would be out for the parents who let their kids near it; or even had one in a house with small children at all.
Are RCDs not required in your area?