Not the "premine" is an issue, but the issue is how it was handled. It seems like their intetion was either for it to happen or simply the ideea came after it happened, just look at it:
1. "bug" happened, main devs were most likely the only miners at first so they pre/mined every single coin at start.
2. They promised to restart it. Didn't happen.
3. They used the premine to vote for themselves to keep the coins - About this point i am not sure, someone should correct me if i am wrong. I've read that there was some sort of "vote" and they could use the premine to vote for themselves
4. Rebranded the project to lose the track.
5. Move and develop the project into a direction that would constrain the supply to artificially increase the price ( masternodes ). And don't come with "but masternodes can sell at anytime" crap because, because the devs own / owned most coins. Plus, with such huge ROI, 10-15%, the incentive is to stake.
6. Centralization, because of the premine there weren't too many coins left to mine, contrary to the promises.
Also watch how Evan chocked when he was asked about the premine, min 47 https://www.youtube.com/watch?v=0EG2km7GAmM
So yes, dash will never get rid of it's scam shit stain.