there may be some in scBTC who need to get out fast for IRL reasons and would rather take a slight loss selling on an exchange rather than going back thru the peg with it's contest/confirmation delays. ppl do all sorts of crazy shit.
several proponents here have already agreed scBTC would be priced less than BTC, at least initially.
I wonder if somebody can try to legally force this outcome, for example in the case of central banks issuing their currencies as sidechains.