But in the alt-world's historiography, the Holy Roman Empire is regarded not as a horror story of useless complexity, it's treated the way we do medieval England, as a jewel-box wherein cherished bits of the modern world first originated. Teacher: "And town air was free air, the saying went." Class: "Ooohh."
And the good part is it isn't even historically inaccurate. The earlier HRE was somewhat functional, at least north of the Alps, it's more that it failed to change as the rest of the world did and wasted colossal efforts wrestling with the papacy.
I wonder, does the Habsburg empire endure long enough for Austria proper to end up outside the 2nd empire? I imagine it does since there's no mention of it in the flash forwards about Germany, but it's an interesting possibility because keeping the idea of continuity with the HRE means territorial claims like Bohemia, the low countries or Austria could make sense.