My goodness Apple News is pernickety. Just spent two hours tracking down why three of my posts hadn't made it into the Apple News stream. All came down to tiny tiny errors in the HTML that Wordpress accepted and rendered quite happily - but Apple News - nope . #FAIL.
In the end I have a single post left that hasn't published to News - interestingly titled : Top 5 Pranks Apple Have Played On Us - I originally thought it was a conspiracy - I think I now know that in that post - it is long is a link error.
Going to let that one slide.