Doesn’t surprise me at all. It felt like a white label job through and through.
Eh, I’m just waiting for people to stop using them. Anyone want a Roomba? 
Those look like just red LEDs - should be fine, other than the generally annoying aspects of near-monochromatic light for living/working.
Regardless of what they are, I’ve got a LED nightlight like that, and it does what it says on the tin. We got a few for my kids rooms, and this is the spectrum coming out of them, which largely matches what they claim. However, the ones you link mention being non-dimmable, which… bleh.
Of course I don’t see the ones I have for sale anywhere…
My guess is that either they’re green pumped, or simply have a thick enough coating to entirely absorb the blue. I’m not sure, but these are a few years old and still do what they say on the tin.
The problem with color temperatures is that they’re “If this were glowing, what would look like this?” sort of averages. Though I believe it’s very hard to get anything below about 2000K with much blue of any sort in it.
You might find something dimmable, though.
I have some of the current gen Phillips Wifi bulbs, will probably do those in two weeks, and they’re certainly nicer - they’ll stay on the white emitter for longer, but as you fade out to a saturated sort of orange, at some point it falls off the white emitter’s range and you get a spike in blue as it goes to pure RGB.
They also dim properly… but only on white modes. Once you go to RGB modes, they won’t obey a wall dimmer and just glitch out. Because I guess when you bolt different equipment together, it doesn’t have to all behave.
Eh… maybe. Do you want it back when I’m done? I’m not keeping any of the smart bulbs around, I’m just going to review them and then sell them of.
However, if someone had some old Cree LEDs, I’d be interested in some of those. I think the early LED bulbs were an awful lot higher quality.