IDK about Cypherdoc's ideas around mining centralization. However, right now I believe that it is driven by reliable access to premium hardware. As some early ASIC mfgs proved, if you can get your hands on these ASICs you might as well mine with them rather then sell them. However, AFAIK the mining ASIC industry is basically at the state-of-the-art with this release so subsequent generations will track the 2-3 year at best ASIC process improvement cycle.
Without the centralization force of unreliable access to hardware, I think that large mining farms will start to find it difficult to compete against incidental miners (like hobbyists) because these miners will more efficiently use byproducts (heat), will not be expensing their time or internet (or even better deducting it on their taxes as a home business expense), and do not need to pay for location, monitoring and security. This means that dedicated solutions will only be competitive based on electricity cost.
However, where I live you can sell solar back into the grid for 4c per kwatt*hour, and I have very expensive energy on the buying side. The spread is pretty huge right now. So mining can be used to consume excess solar energy at a very low energy cost.