People ask what it takes to bring institutional liquidity onchain: one key ingredient is capital efficiency that's on par if not better than existing solutions. With portfolio margining, you get the benefit of having every dollar of margin work as productively as possible.
Capital efficiency is still a key challenge for exchanges today. Institutions have entire businesses devoted to optimizing for capital efficiency and balance sheets. Without the ability to properly portfolio margin, today's onchain CLOBs are children's toys compared to CEXs.