Even in a Kingdom Hearts specific news site like KHInsider, there are various news which some people don't even find interesting at all. Some people simply don't care at all about the KH Manga, merchandises or anything like that, but there are numerous people who still do. I've personally never tried TWEWY, nor do I have much interest personally in various KH merchandise, but I gladly report on all these things because they're what help keep this website relevant and active. My point being that we can't please everyone at once, but what we're doing by reporting TWEWY news is beneficial for everybody in the long run.
As mentioned numerous times before, TWEWY is closely related to the Kingdom Hearts series in various ways. Currently there really only is one TWEWY game out there, so there can't be a TWEWY-only news site anywhere. This fits perfectly into KHInsider, since reporting only on the KH series can make this site dead at times. Besides, it's not like any KH news site out there hasn't featured something other than KH specific news before. Reporting strictly on KH related media just isn't good for any of us in the long run.
For those of you who still think that reporting on TWEWY news makes this any less of a KH specific news site, then let me remind you about basic economics. Importing external goods into markets is always beneficial for domestic products, since it will benefit both the consumer and manufacturer, ultimately strengthening the market as a whole. What this means for TWEWY here on KHInsider is that it's nothing but healthy and beneficial for all of us.