I would give this new idea of playing Pokemon my full approval/disapproval after TPCI makes an official announcement. Nothing is confirmed as of this point, so it is possible that this type of format/tournament structure isn't entirely accurate.
However, just based on this idea, I welcome it because I do like the idea of switching-up strategies/decks to change the pace of the tournament--it does require a lot of well thought-out ideas to really become the champion. But, at the same time, I, too, wanted this BW-ON format to be a separate tournament entirely. Honestly, that method seems to mimic what Magic The Gathering has and attracts certain players to specific tournament structures. Also, if TPCI would host separate BW-ON tournaments during the season aside from the modified format that provide championships points to Worlds, that would have been perfect! In short, when I first heard of this BW-ON format, I thought of seperate tournaments of different days from modified tournaments, to provide championships points.