I don’t think anyone is saying “kill the economy”. I think footfall is interesting but there’s several options that have been presented by others. Either cap footfall, introduce a new coin faucet, or introduce a new coin sink.
But without anything to spend coins on to remove currency from the game then the overall wallets of the ENTIRE population, not just those in charge of hubs or those in capitals, will continue to get higher and higher and prices will continue to inflate and new players will be left in the dust. It’s an issue that needs to be fixed sooner rather than later if the game wants to continue gaining and keeping new players.