In many countries you do not get charged with every possible crime if there is a larger crime involve. If someone rob a place, they don't also need to have separate charges for illegally entering the place, destroying property when they broke the window, selling stolen goods, wire fraud for using the banking system, and money laundering for concealing that it is illegal money, and tax evasion. Each step is illegal on their own, but time crime statistics won't be written like that. The prosecutor may argue that if the accused are not found guilty for the primary, then secondaries may then be used.

The strange thing is that the UK are arresting people for abusing the telecom system, and not for the more serious crime like terrorism, death threats, harassment and sexual harassment.