That is a strong point that adds up to the list of Bitcoin benefits, it's true that BTC has never been counterfeited but let's not forget that hypothetically it's still not immune to the 51% attack and we know that in 2014, the mining pool ghash.io briefly exceeded 50% of BTC network's computing power, afterward they voluntarily committed to reducing their share of the network. Today, from a realistic view it's very unlikely to happen again.