I took a client's online store gross sales from ~$15K per year to over $250K per year and I can tell you for sure, capturing sales from abandoned carts is very real. Your reasons and actions don't reflect online costumers as a whole.
My last employer had a team of 3 (a dev, a copywriter, and a designer) dedicated to tweaking the abandoned cart sequence. When we implemented an abandoned card email dripper, we doubled sales in 3 months (from 40K P/M to 80+K P/M).
I hate email sequences like this as well, but they work (just like popovers with an email newsletter).
Not like, "I can't write software in my spare time" short.
Like, "I might not be able to finish writing this comment" and "There's a 50% chance I'm going to get interrupted if I try to buy this thing online right now" short.
I can still get things done at night but often I just don't have the energy.
So anyway, that's one reason why abandoned cart notifications have actually been useful for me now and then. More than 1 email is pushing it though...