Slightly off at a tangent, and Graham is probably sick of hearing me say this today, but I think the GWR▸ website should actively state when trains are re-instated. Currently they are simply deleted from the list of cancellations.
You would think a train being put back on would be good news and they'd be pleased to draw attention to it.
The afternoon round trip
did get converted from "cancelled" to "re-instated" on journey check for a short while (minutes rather than hours) today ... but easy to have missed if you weren't actively watching in those few minutes.