Personally, I think the main difference for the pros might be the "whip" provided by the new handle, is it any different compared to standard spliced handles.
The pros get the pick of the ultra-low density clefts anyway so their bats are gauge-fillers anyhow, don;'t think this technology will help much in that sense for the pros.
The whole weight issue is more likely going to be more catered to the paying public, where denser clefts prev not used are now used and brought down to a manageable/sellable weight while still providing the sought-after large edges/gauge filling - in some ways, using stock that would not be desirable.