I can appreciate the thought, because as a part time wheelchair user, it does often wear me down when I feel like I’m perpetually perched on the periphery of any conversation.
However, like you say, this is just far too impractical for most people. I have a small, active wheelchair, and even that would probably put me in front of friends sitting on the bench beside me.
However, I can totally believe that this was made in earnest. I’ve seen some ridiculous “accommodations” that are ostensibly for disabled people that just show that the able bodied designer just didn’t involve any disabled people in the design process at all. And that’s why “nothing about us, without us” is a long used slogan used by disability rights campaigners.
If anyone wants to see an example of good accessibility design, I love how they designed the packaging for the Xbox Accessible Controller. They included lots of people with varied needs across multiple stages of the design process, and it really shows. And the end product is so elegantly functional. I like this quote from Solomon Romney, a “Microsoft Retail Stores retail learning specialist”:
"The whole thing sort of blossoms open in this really beautiful, fluid way. The package just sort of opens and hands you the controller. What’s wonderful about it is the effortlessness.”



What it’s meant to mean is “yay us! We’re doing inclusivity!”
What it actually means, to me, is “we will make a show of valuing disabled people, but we won’t go so far as to actually include them in the design process, thereby making this bench an artifact to our own self congratulation, as well as making wheelchair users feel excluded in a far more insidious way than they already did”.
And I feel like an asshole to say it like that, but it’s so annoying to see well intentioned people fall at literally the first hurdle. Like, if they truly do see us as people who have intrinsic value that means we are worth including, then they also need to see us in our full personhood and include us in the process. The alternative is that their enthusiasm will just cause more money to be pissed down the drain on symbolic gestures that don’t fulfill their intended purpose