It means that it’s going to take more and more resources to run a full node. That’s what happens when your coins are divisible and every transaction creates more and more artifacts that must be stored by the whole network. Since a wallet can hold thousands of UTXOs that have been spent by thousands of people in the past, it’s very hard to untangle their histories. If a full node really wants to make sure there was no double-spend, it would have to store the entire history of every transaction ever.
Since the coins on the Intercoin network aren’t divisible, they have a much shorter history, and each one can be tracked by a subset of the network. Maybe a coin changes hands 100 times before being taken out of circulation. The transactions can also be private and encrypted, while still allowing statistics showing that they’ve been spent on a particular category (food, clothing, books etc.) because each merchant certified with this category would be able to sign the transaction with that category, without revealing themselves.
This enables a local Consumer Price Index and money analytics for any community.