These crystals are not designed for a general high voltage oscillator circuit, they are designed
for logic circuitry which is mainly 3.3V and below these days.
It may work in a 12V circuit, it may not, the manufacturer isn't going to worry about that. In general
a larger package would imply greater power handling, but it all depends on the details of what's inside.
You could try asking the manufacturer directly what the limits are, or you could try using it and
seeing if it works (which doesn't guarantee a long life or that other similar crystals will be happy).
My suspicion is that the materials used are robust, it can probably take it, but you might find
the frequency gets pulled a bit by overdriving it, and long-term drift may be greater than specified.