I don't think the peg is a big problem.
but I am confused that why now very few users are interested in bitUSD.
because of the black swan bitUSD lost most trust?
BTS supporters know that Bitshares is "better than" BTC -  faster, cheaper, scalable, etc., etc.
but how to convince an ordinary (non-crypto) person or family member who trusts your opinion to invest or spend $1000
e.g
Investment vehicles...
Bank savings account or time deposit -     since November 24 2018      ~  0.4% APR         $2.33  profit           ROI     0.233%      perception : no risk of loss of principal
BTC  -  price was 3854  and on June 22nd   1:43pm UTC    price is   ~ $11085              $1876  profit                ROI  187.6%     (high volatility)
BTS (bit USD settlement price)  was     ~ $US   0.0511   -    (190622)    ~ 0.067            $311   profit          ROI  31%         (med volatility)
Gold               US$ 1221 per ounce..        ~    1399.31                      $146  profit                ROI   14.6%     (low volatility)   
Utility value  versus fiat :  
 BTC - allows for purchases of some goods and services;  remittances to family, friends, business associates, who understand crypto
CANNOT use to pay taxes, university tuition fees,  political campaign contributions, donate to charities... yet..
Gold -Relatively stable investment, retirement savings, high liquidity, transferable asset to heirs, hedge against fiat, etc
BTS -  not as volatile as BTC at the moment, has lots of potential, needs postive black swan to catch up to XRP, ETH, LTC, EOS, XMR, BCH, DOGE, ZEC
and the new kid on the Block (Chain)    LIBRA    (FACEBOOK) !