There is but one reason they use apps like Whatsapp. It's an attempt to get around Federal Records Act and in doing so not leaving a record by which they can be held accountable.
The Federal Records Act states:
Congress deemed federal records worthy of preservation for their "informational value," and also because they document "the transaction of public business" and the "organization, functions, policies, decisions, procedures, operations, or other activities of the Government." The FRA requires executive branch departments and agencies to collect, retain, and preserve"or dispose of"these records.
www.congress.gov
It is strange that this isn't mentioned in the article. It's well known to exist as a legal requirement of those holding office so that a record of their actions on behalf of the taxpayer is recorded. Whatsapp by it's claim of being encrypted, does not leave official records, by it's nature. What's not recorded as official actions makes it very much harder to hold an office holder responsible for their actions. Hence it's use.
A 656 CC engine? Geeze, my motorcycle engine is bigger than that. To be honest I miss my small sized economy pickup truck. While it would not be competition for the Acty as far as capability goes, it was never meant to be, designed for a different market.
What I liked about the compact pickup, was gas mileage, cheaper to fill because of a smaller gas tank, and yet you could haul a bit of stuff with it. Today's monster sized factory pickups are not what I need nor what I desire. I want a truck that costs less than $20 to fill up, gets around 30 mph on the highway, and is not designed to move a house, just maybe a run to the grocery store for several months of groceries at one haul. Nor did they cost $50K+ to buy one new.