I dont believe BTC or BCH are going to be leading the way for mass adoption. Theres coins out there that had the benefit of years of hindsight to identify and improve on where BTC/BCH suffered speed and scalability..

BCH with 32mb blocks could end up losing Nodes. Assuming full blocks the chain would grow roughly 4gb per month. On top of that bloated chain needing storage the Node operator would be using considerably more bandwith uploading to the network to verify the chain.

This could lead to more centralization...

There are obviously workarounds for these problems. Whether Roger would deviate from the whitepaper that much remains to be seen.

For the adoption they seek i believe BCH needs more than big blocks..