So widespread, it deserves an acronym: CLASP.
You have a clasp when people criticize your new strategy because they don't know how to execute it.
Yes, a new strategy has to be executable, or it's merely a wish. No, the logistics behind it don't have to be tried and true. It's one job to dream up a strategy and another job to execute it. Whining about how hard the logistics are is just fine, but don't conflate this with thoughtful feedback about whether your strategy makes sense.
Just about every great new project couples a brilliant strategy with impossible logistics that somehow get handled.