They made pulls on an engine dyno? Impressive? Sure. But it’s no different than the Supra’s that make 1000WHP on the stock bottom end, but would throw a rod on the first high load street/pass at the track. Putting it in a full(ish) weight street car and having it hold together is another feat all together.
That’s why I said detune it a bit and it should live for a long(relative) time.