This is a common fallacy around science students who use anki for the first time. Smashing a deck without accompanying learning ressources won't lead to connecting the dots like you would in a traditional learning setting. So given an exam you would probably fail as you can't connect the dots because you just memorized facts in a random order. The exception is of course language learning for which anki and spaced repetition was made originally because random order doesn't matter and connecting facts neither.