I do not think that is true. This is what all of them say whenever standardisation comes into the argument. However obviously they use that to lock the customers in.
So the scooters should be able to handle the new batteries just fine, and it would be on the network operator to upgrade the charging kiosks accordingly. It'd be much easier to rolling-upgrade batteries in a swappable fleet than to call fixed-battery scooters into the shop and swap each one out, as well.
You will need a standard communication protocol for storing charge/discharge history with the battery and reporting temperature. Nobody wants to swap in a battery that is exhausted and won't maintain a charge. Vendors maintaining swap pools need to know when to cull old packs.
As quoted in the article this piece is what the finance minister highlighted in her budget speech last month as being important to get in place.