That it took 20-30 years longer than everyone else is through absolute incompetence and mismanagement. It would have been in place at least 10 years ago if they hadn't screwed up the RFP that Huawei won.
And it's not even shared infra! Vodafone is WAY behind the other networks.
I have worked with these things. There's no valid excuse for being 20-30 years behind on this.
And it's still not landed! By the time it finally gets to all stations I wouldn't be surprised if it's 40-50 years behind everyone else.