The owners of EVA, the Evergreen shipping group were major financial sponsors of Pres Chens party the DPP. China Airlines, besides still being majority owned by a government qango was always a bastion of the previous ruling KMT party. Chen had little love for CI
when he came to power. But in recent years Chen has been trying to "fly the flag" though as pointed out, CI
has no flag on their planes anymore!
I'm not sure Chen ever travelled on BR
on any significant overseas trips, first he doesn't get to go abroad much till the last few years, even the US used to refuse transit visits to the Taiwan president. He used the air force 737 on some trips and in recent years he has used CI