I understand what your intent is in saying this, and I agree with the intent, but for onlookers, you don't really need a lot to make a good game and this would likely be just fine. I don't actually know if it's possible to ship GL games on modern consoles now that it's in-fashion to have your own proprietary graphics library. That said, the way Google has factored the back-end of the renderer, it won't take a PhD to target one of those GPU APIs.
Aside: GL is still a good practical choice for games built by small teams.
I guess it depends. There's no reason to promote this as "console grade" unless "console grade" means something more than, plain old 3d object renderer.
Certainly, you could define a console as an NES and the claim "console grade" but I'm guessing they are claiming "console grade" means, competitive with the renderer in games like Battlefield 6, Elden Ring, Horizon Forbidden West, etc.. Filiment is not up to those tasks.
Yes, you can make great games without the features of top console game graphics engines. But again, there's no reason for the hyperbole of putting "console grade" in the description then.
Yeah, it’s salesmanship. My feeling is that some amount of salesmanship is fine. This pales in comparison to a lot of promotion we see today. I mean this genuinely; maybe my standards have fallen too low? Perhaps I’m getting numb to it.
Aside: GL is still a good practical choice for games built by small teams.