Given how expensive arbitration is, I'm not surprised they are changing this. When you have 75k disputes, it's probably cheaper to get sued through the regular judicial system than to pay arbitration for everything.
Arbitration really only works when the two parties need speed. Like two large business entrenched in a multi-million dollar contract issue. Not for when you have disputes with your customers.
My guess is that this is a problem caught through an audit. They realized they were siphoning millions of dollars of arbitration fees to solve menial conflicts.