The comment paraphrases the story/book excerpt much more harshly than it's originally presented. I can't find the bit about Jobs having to step in and "check Ive's worst tendencies" in there at all. Here's the quote.

Jony and his team preferred the Extrudo look and gave it the most attention. They tried cases that were extruded along the X-axis, and some along the Y-axis. But problems surfaced immediately. Extrudo’s hard edges hurt the designers’ faces when they put it up to their ears. Jobs especially hated this. To make the hard edges softer, plastic end caps were added, which also helped with the radio antennas.

If you read further, you'll see that there were other factors leading to the abandonment of the "Extrudo" version as well.