> Design decisions like write-ahead logs, large page sizes, and buffering table writes in bulk were built around disks where I/O was SLOW, and where sequential I/O was order(s)-of-magnitude faster than random.

Overall speed is irrelevant, what mattered was the relative speed difference between sequential and random access.

And since there's still a massive difference between sequential and random access with SSDs, I doubt the overall approach of using buffers needs to be reconsidered.