I would just like to add that even in Japanese shows for kids the level of violence can seem excessive by Western standards.
I've been watching Japanese entertainment for decades, and I'm quite familiar with their levels of violence. The kids' shows may allow more acknowledgment of death than an American kids' show would, but they still tend to tone things down quite a bit -- humans rarely die onscreen, dead characters tend to get resurrected, and any blood is comparatively mild. This is a lot more graphic, with civilians getting dismembered and eaten on-camera and lots of blood. They're obviously competing with the Heisei Gamera trilogy's level of horror and violence, which is why it's such an incongruous blend with the attempts to emulate the more kid-friendly Showa era and
The Brave.
There's also the odd choice to use explicit profanity in the English subtitles, even though the Japanese interjections being translated are far milder. (E.g.
chikushou gets translated with the S-word or F-word even though it literally means "animal.") It's a TV-14-rated show, so it's obviously not aimed at younger kids.
In the final analysis, I feel the whole thing is like too much modern franchise media, in that it's driven more by remixing and homaging the franchise's own past than adding something new. It's decent, aside from the stiff and jerky animation, but it's not meaningful in the way the Heisei productions were. It doesn't feel like it's really
about anything except homage to Gamera's history, and a lot of that homage is superficial, emulating the forms without the substance. And it doesn't do a good job of making Gamera himself feel like anything more than a plot device.