I would love to see the 32 second sample limit removed too, but I am fortunate in that I have an Octatrack which can cover this for me.
I really wonder whether it is a technical limitation or a marketing decision so as not to overlap with / cannibalise sales of their other products, though to be honest, I don't really see the Toraiz being the one and only device a DJ would use for a live set if the 32 second limit was removed.
Maybe Pioneer are keeping this up their sleeve as a big reveal, for a time when they feel they need more thunder in the market. Or, maybe >32 secs will just simply mess up the CPU / disc streaming.