There are so many problems with this.
I agree that it's unlikely to be a coincidence that so many hosts have reported a decline in their review rate since these changes were brought into place. I have also noticed mine has dropped and I can't think of any other obvious reason for it.
Many people do have short attention spans these days, they are busy, have better things to do (especially if they are still travelling). So many guests can't be bothered to read listings/house rules/messages, even when it is for their own benefit, so what makes Airbnb think they will take the time to fill in lots of questions after their stay, when their minds have already moved on?
How many times have you seen one of those boxes pop up on your screen asking for feedback, when all you wanted to do was make a purchase/enquiry? How many times do you think, "Yes, I'll fill it in. It can't take more than a few minutes," versus "I really don't have time for this right now. I have more important things to do."?
Also, this whole ticking the amenities thing concerns me. Although on the surface it seems logical enough, I am not sure how many guests notice/remember accurately everything that was/wasn't available. They are going to make mistakes and may say things weren't there when they actually were, even if you mentioned these things to them.
In my experience, many guests don't read/take in really important things on the listing. How can you expect these guests to correctly remember the facilities that were offered without them having to go back and check the listing, which they're not going to do? Then, many guests don't pay that much attention during a welcome tour. They may be tired. They may be thinking, I don't need this or that, so I'm not interested.
My guest who checked in last night arrived late evening after a long day at work and needed to get up again at 6am. She didn't want to see anything other than her bedroom and where to shower, not even tea/coffee facilities. Is she going to remember if I had salt and pepper or not? I doubt it. Is she the kind of person who believes she has time to fill out loads of questions in a review. Unlikely.
Airbnb need to make it quick and easy for guests. When people are travelling, whether for business or leisure, their minds are elsewhere. Unless they are particularly picky guests, they are not going to notice every little detail. If they are critical/demanding/entitled, they are more likely to expect things that weren't advertised, find fault and make inaccurate statements in reviews.
Recently I had guests that complained we were out of coffee and sugar when they themselves had moved those things to a different cupboard. They expected breakfast, even though it's not included in the listing. The coffee maker wasn't to their liking. They expected a waste disposal unit in the sink. They took my personal toiletries from a cupboard even though I had provided them with those things already. Airbnb, don't encourage these people!!
Airbnb deciding to measure Superhosts on their review rate is ridiculous in the first place, as it's something clearly beyond our control. Making the review process more complicated for guests means achieving that review rate is even more stressful.
Sorry for the long rant, but the review process was already seriously flawed and now it hasn't gotten a whole lot worse.
