my opinion.
KP’s mouth is faster than brain.
Pulled out from KMT agreement on technicalities. In fact, he was too confident to give KMT handicaps earlier. Should entered the agreement with more thoughts and constraints.
His mind is based on Practicality and Science, when new info comes, he will switch mind.
His gray stand on China is difficult to maintain unlike blue and green team, which is pro and anti respectively.
He does speaks too fast, but that it isn't all a bad point. Youngsters prefer this trait.
He didn't pull out, he just wasn't expecting KMT not even trying to win him after giving a big advantage.
Being in the middle ground of blue and green is the biggest possible way of getting support. Notice all the smaller parties like yellow and orange camps all "dead" for being at the other ends?
He might not win this election, but can't fault his long term direction.
On the other hand, KMT should be worried. As long as future generation is either green or white, how long can they last?