Also, this shows a lack of media awareness and hype making. Pokemon Company, you're really going to announce a same bit of news you gave to CoroCoro? There's no point in that, because you're going to see that news somewhere first, highly likely the same time everyone else, so there's no feeling about it when we see it announced the second time. This goes especially when its announced in CoroCoro first (yes technically CoroCoro isn't suppose to be out yet but that's part of the lack of media awareness, CoroCoro always leaks early to the point they should expect and plan for it) since we expect the magazine news to be limited but the website to go into much more detail which, from what I can tell of the Japanese site, they didn't really. And we didn't get the Rockruff evos so we got less news then from CoroCoro.
The news you give to CoroCoro should be separate and not/have little overlap with the news you plan on announcing around the same time on the site (this is suppose to be exclusive news you're giving to CoroCoro, right?). Then next month you can clump last month's CoroCoro with the batch of news you plan on releasing on the site since CoroCoro will have a new exclusive to show.
And we won't even go into the issue of what you should be giving exclusive to CoroCoro in an age where everyone has access to the internet in some capacity. Though I will say for something like Ultra Beasts of highly anticipated things like Rockruff's evos maybe keep those for the main site (OR, maybe play with the split concept. Like have CoroCoro show Rockruff's Night Evo and UB-02 Expansion while the site updates with Rockruff's Day Evo and UB-02 Beauty, hinting about the other counterpart's existence). I understand you want to give CoroCoro something, either out of respect and/or obligation, but nowadays the news should be both intriguing but not anything major.