BTW, on the medieval Romania vs Ottoman Empire analogy, it's worth pointing out that in the end, Vlad was defeated and 2/3s of Romania was annexed by the Sultan.
But what's interesting about that story is that it was a decade and a half military campaign, against a wily and sadistic field commander. Drawing from one of the largest empires of its time, the Sultan could continually resupply both troops and weapons, to his worn out divisions. Vlad was continually experiencing attrition with less capacity over time. Eventually, he would have been defeated. It was kinda inevitable.
And this brings us back to the 1st round. If the Cavs had let's say 15 or 21 games, it's very likely that whatever psychological blow the Celts could impose on games 1 and 2, will quickly be dissipated by game 7. And then, it'll be war of attrition where every tactic of BS, will be countered by an adjustment on the Cav's side. In a 15 game series, the Cav's win 8-5. And in that scenario, it's Brad Stevens who'll be impaled, not LeBron James, during game 13.