I somewhat agree. I also think that sometimes going backwards is exactly what people like. For instance, mechanical keyboards are pretty old and largely replaced, but so many people like them so much that they are willing to spend a lot of money on them.
But they are also better. (Just more expensive and/or bulkier, i.e. their pros come with some associated cons.) Whereas delayed send / batch read only has "advantages" in the mind of the user, who could achieve them for himself or herself quite easily.
Since the beginning of Covid, my workplace has converted almost fully into remote working. For a lot of people this has been great, no commute, flexible working hours, ect.
For me, it has been a living nightmare and I believe I have narrowed it down to one thing; the constant stream of messages that I am now getting. Everything is unfiltered, instant and arriving at all times.
This has resulted in message fatigue where I am no longer able to connect with my friends.
I feel that platforms like Pony work to eliminate that. Remove the anxiety from checking messages and add a structure that everyone can follow.
I sincerely hope platforms like this become more popular.