Bitcoin protocol seems to be a system that is finely tuned economically & legally; ABC is reckless with its changes. Just adding DSV has a good chance of making BCH a target of SEC.
.. then there is the economic changes to the miners arising from DSV. Basically fucking with the fine-tuning of the system is a recipe for disaster.
.. BCH has now set a precedent of tinkering with the fine-tuning, which means that it is going to continue & likely escalate in future-forks; imo not-freezing of protocol is a no-go