Once you take a moment and allow this to sink in, it's easy to see it's an outstanding option for: older persons who have difficulty traveling, younger persons who cannot afford the trip, far flung persons who ought not take the time away from work.
It's a pale shadow of actually being at the funeral, and of actually communing with your family and friends. I always think that - when I'm dying - I shan't regret having attended funerals and weddings and family functions.
Still, though, sometimes things (properly so) do not work out for attendance. A webcast is a good idea.