After careful consideration, I have had a change of heart
I had not fully digested the fact that she was doing 45 in a 30. Clearly there are 2 issues here - the speed and the mobile use
4 years is probably fair.
As an aside, I know someone who got 4 years for killing someone by driving recklessly. Overtaking a line of cars, round a corner (misjudgement by him) - Driving too fast etc. crashed into a car coming the other way.
He is a really nice guy, churchgoer, charity worker, thoroughly decent bloke etc but..... he had to be seen to be punished for his crime. Sad for him, but you are responsible for your own actions. I felt that his punishment fitted the crime. The family of the deceased need to see "justice being done"
The problem is people do not consider the consequences of their actions until it is too late.