I cannot help but feel her actions are being promoted by others with an agenda. She admits to being contracted to the Swedish company to record her voice for various purposes and was no doubt paid for her time and effort in so doing. Her objection - although not specifically stated - appears to be that she wants more money for the work already done due to the additional use & benefit these companies obtained by using it to ‘train’

their AI model. Then goes on to proclaim that it is inferior - and having listened to both, find it quite acceptable.
None of us are privy to the contract she signed, but I think it more than likely the company has sewn this usage up, but her union is using it for their ends and a ‘bigger picture’ whilst ScotRail wanting to avoid a political hot potato have been told to retire Iona Mk 1. It’ll no doubt be replaced by ‘Morag’ whose artist will have been explicitly told the purpose of the recording to head off a similar stand-off down the line.
How is this any different from the ending (years ago) of residuals and repeat fees for broadcasts that invariably precluded old shows being recycled on existing and new channels? AI training does not involve any additional workload so the agreed fees were inclusive of such usage.