Rushes : a unique viewpoint (pardon the pun). So - you're saying that whilst a twin can hover, a single can't ?
Erm.
for a 1 minute shot they get 1 minute of the subject matter they are interested in, rather than 15 secs of that, and 45 secs of the back of a building that is of little interest while the aircraft keeps up an orbit at suitable speed.
Are you a helicopter pilot ? Have you noticed that twins also orbit. Just as singles also hover.
The main difference is the endurance. Whilst your average AS355 fully-loaded with 3 people, the tv gear and all that lovely fuel + spare engine, flying to Grp A, can just about do 1.5hrs between refuels - a good piston single like the R44, carrying the same load of 3 people and all the tv gear, can be on task for 3.5-4 hrs.
In a developing story/incident, which machine would you consider is the most useful ?