I experienced the same re lack of info re FCOD. I like the option of the new "semi flex" ticket (nice to easily see which refundable fare options are available), however when I clicked through to the fare conditions, reference to free change on day did not show at all.
I then checked on the App, where it did show this detail on the fare condition, so I booked via the app for my own piece of mind. Presumable this discrepancy is either an oversight on the new website, or perhaps they are planning to remove this benefit (which would be a shame).