What is the reasoning for putting a worse ssd in that the previous model?
Good question.
It's a public service move on Apple's part, giving the perpetually unhappy and sad in the world an opportunity to have a teeny blip of power that's otherwise lacking in their lives, providing purpose, to go non-linear with a faux meltdown on a public forum, letting everyone know how aggrieved they are.
It's the new normal on the internet.