While BTSX is centralising DAC features, developer focus and most importantly Network Effect, it doesn't prohibit third party DACs at all. The question is just whether they can compete.
This new entity will be a self funding DAC that allows consensus via DPOS. It is the most decentralised organism yet conceived by the mind of man.
(Sidenote: I would also invest in a constitution enshrined, fixed limits on dilution DAC, but BTS is the pioneer in a new environment, so needs to be flexible and adaptive.)