What you highlighted from early external records is significant even if details may be debated. The point is that this early behavior whether conquest-driven or not ended up shaping how Islam was remembered and later formalized. That directly affects the topic of transmission.
When we talk about preservation we should not limit it to text alone. There is also preservation of narrative what people did, how those actions were explained, and how they got absorbed into hadith and tradition over time. Political decisions and military campaigns became part of the "Sunna" through reporting and reinforcement, even if those actions were not grounded in the Quranic model.
The Quran itself does not present a message of offensive expansion. The early Prophet led campaigns were defensive or reactionary. The return to Makkah was peaceful. That should have set the tone a return to belief, not domination. But later history added layers, and those layers were carried forward as if they were part of the original revelation.
This is where the difference in transmission between Quran and hadith becomes visible. The Quran was preserved through memorization, public recitation, and fixed wording. Hadith, on the other hand, preserved evolving interpretations, behaviors, and justifications many of which were tied to changing political realities.
But more importantly, we are not living in the 7th century we are here now. And today we see the result of all of this: religion being used as a dividing tool, people being manipulated based on old narratives, and nations stuck in cycles of mistrust, fear, and conflict. Whether Muslims, Jews, or Hindus ; countries are at odds, and ordinary people suffer. Hate crimes, communal violence, online division all rooted in distorted versions of identity and belief.
Add to this the mix of conspiracy, propaganda, and those who intentionally fuel division for their own power. In the end, it is the same old game: power and control, dressed in religious language.
So when we talk about what was transmitted and preserved, we should also ask: what are we transmitting now? Are we repeating the same pattern, or trying to return to something simpler and clearer?