I can understand, because AoE4 campaigns are more like interactive documentaries than fun games. High production value, but quite boring IMO. AoE2 tells history as inaccurate character stories, but they're engaging and memorable. (AoE2 also seems to
still have better maintenance than AoE4, even now. There's new campaigns and civs coming soon, and the old campaigns are being reworked with better voice acting and co-op mode. If only they'd stop pulling all the fun out of the main 1v1 online map.)
Even though AoE2 campaigns (and EU3/4 events) are inaccurate retellings, they inspired me to read more about the stories. Carefully considered documentaries never did that.