The key technology design dimension cell towers of almost any generation gives you is the the ability to tradeoff cell sizes and numbers of nodes with density of users. Maybe 5G gives you some incremental improvements on that, but it was always possible to put in more towers for more users.

US telecom companies in particular have always been at loath to share any cost savings with the end consumer - so I don't think consumers have any reason to be exited over marginal 5G gains on efficiency.