Re: Did you actually read the article?
Cost is not the same as price to the consumer. Something Ovum obviously missed as they compared the £240-a-year line rental (price to the householder) with the cost to deploy (cost to the telco).
Likewise, whilst the 'saving' could be passed on to consumers, we know that this is unlikely to happen in any meaningful way. Particularly given the cost of entry into the 5G market gives little opportunity for new players.