All they had to say was that the KiB et. al. were introduced in 1998, and the adoption has been slow.
And not “but a kilobyte can be 1000,” as if it’s an effort issue.
In my mind base 10 only became relevant when disk drive manufacturers came up with disks with "weird" disk sizes (maybe they needed to reserve some space for internals, or it's just that the disk platters didn't like powers of two) and realised that a base 10 system gave them better looking marketing numbers. Who wants a 2.9TB drive when you can get a 3TB* drive for the same price?
Three binary terabytes i.e. 3 * 2^40 is 3298534883328, or 298534883328 more bytes than 3 decimal terabytes. The latter is 298.5 decimal gigabytes, or 278 binary gigabytes.
Indeed, early hard drives had slightly more than even the binary size --- the famous 10MB IBM disk, for example, had 10653696 bytes, which was 167936 bytes more than 10MB --- more than an entire 160KB floppy's worth of data.