Sounds like DPP just want an excuse not to actually go to war.From the DPP's perspective, they are already independent and so there's no need to "declare" independence. This does imply there isn't really a way to trigger the Anti-Secession Law via action by Taiwan, since the DPP would never declare or hold a referendum for status they think they already have. China has also shown it won't be baited into a war by the Trump administration over words.
The only conditions under which China may need to respond is an attempt to develop and/or move nuclear weapons into Taiwan. Various American think tanks have proposed this in the past; but there does not appear yet political will in the US to test China like this.
I mean its understandable. Most of them in power don't actually give a shit about this indepdence crap and have no intention to die in a war for the sake of another.
I realize you could be suicidal but that's only of you yourself want to do it personally. If some other guy says, ok tomorrow we will take care of it and tomorrow you will die at 5am by shooting squad, suddenly you will have second thoughts because your life is now in the hands of another person and you have no agency over it.