I saw that too but don't agree. Farage did want to win Wales. When Reform was ahead in the polls in Wales he made a lot of noise about if Reform won Wales it was on course to win Westminster.
Then Caerphilly happened.
Now the narrative has shifted to not winning Wales being Reform's cunning plan. I think right wingers can't bear the fact that Wales looks likely to elect the left again and they have to find a way to denigrate that. As in Reform could win Wales if it wanted to etc.