It's an interesting suggestion but I think given what we know of life it's unlikely. I guess (obviously this is all speculation - none of us were there!) the origin of life can sort of be thought of as going from chemistry/geochemistry to biochemistry. And purely from a rate of reactions perspective, in a nice solvent like water that's likely to be more conducive to the origin of life than deep underground (in solids/highly viscous liquid at best).

Then there's also flux - do you have temporal/spatial variation in your various chemical constituents that might give rise to potential gradients (as we find in life - chemiosmosis in mitochondria for an obvious example). These are very prevalent at the sort of Lost City hydrothermal vents, where you have a very nice solvent coming into contact with a large mineral flux, with large energetic and chemical gradients. Again, less likely to be found underground.

If you're interested in this kind of thing I'd heartily recommend Nick Lane's book 'The Vital Question' or 'Transformer'. He tends to frame the issue not so much as just having the chemicals available (we find these on asteroids/meteorites!) but in having the energetic flux to get life started. Sort of akin I guess to how the components of a lightbulb don't do anything until you add an electron flux.