Thats the danger overall I think but everyday the danger of shorting is you sell the stock and go long the currency when they are actively undermining currency and paying all bills with new money.   So finding a way to short, that doesnt rely on government as your ultimate backstop to value is probably part of the problem.
The only way to short is find to something better to go long and dollar really isnt that, I think thats the long game that markets find this out.   The effect should be increasing or a positive feedback loop type of effect at some point which is where we know its the end game.   I presume it has to happen but so far the nonsense in BOJ shows it can go on for decades till pensions expire I guess, the ultimate holders from previous economic growth