The last four types I've flown said that you should "Land at the nearest suitable airport" following an engine out. And in my book that equals time, not distance. My company trusts me to make that decision as to where that will be together with my colleague. This guy was also trusted by his company to do the same but this time he actually had to do it for real. What is important is that he took his time and didn't stuff it up. Hats off to him plus plenty of tea and medals. Saving a couple of minutes or going somewhere possibly geographically closer where A. You are not used flying, b. Where you might not have handling arrangements and engineering and c. Where the weather might not be as good might not be the best option (or most suitable). So if flying to where you were going in the first place is also reasonable, then why not?
PS. I think we are still allowed to use common sense.