Seems the main problem is that there are no buses because of poor weather conditions. No buses between Taunton and Exeter so all passengers will have to travel on XC▸ , as XC are still able to run through. No buses between Yeovil and Weymouth due to flooding there either, no road replacement possible because of poor road conditions so it seems a rail replacement hotel service is being provided for the night instead.
On this day, I was due to go to Weymouth by steam service from Temple Meads. After a lengthy stop at Yeovil Junction to refuel (very interesting), we ended up in Salisbury instead. I enjoyed it thoroughly, Mrs FTN was less enthusiastic.