@ItsMeAgainYesHowDidYouGuess2 seems there's confusion about the status of the path (probably because it was badly signed at the time) though it does seem clear that it was commonly used as a shared one and the width of it is wider than the recommended minimum for shared paths.
I haven't seen it reported anywhere that AG admitted 'shoving her' though she definitely admitted making contact and her actions were clearly very aggressive. We haven't seen the full video (which must be horrific) The cyclist does fall into the road with quite a force, there's enough footage to see that; however it's important to stick to known facts.
Tbh the key thing is that there was clearly sufficient evidence for a conviction, that much isn't in doubt and the conviction isn't being appealed, just the sentence.
My own opinion is the sentence is about right, considering the aggravating features (AG's lies in particular)
Frankly, whether the sentence is reduced, upheld or even increased, I think the custodial part is perhaps easier than what's going to follow. AG is not an old woman (she may be released at age 50) - she has years ahead of her. Clearly she's not safe to be allowed out independently, unless there's clear evidence that her aggressive behaviour has changed. She should only be out in public with two people supervising, she's a large heavy looking woman and I suspect would need two people to restrain her if she acted in a similar way again. So she's probably looking at a drastically curtailed life, with the wide public knowledge that she's caused the unlawful death of another woman.
A very sad case all around, but my sympathy is firmly with the victims of AG; at the end of the day, she had a choice about her actions whereas they were victims of her actions.