As a note, the Horde never once “defends” a Genocide. It would be far more accurate to say that were never allowed an opinion on Teldrassil. Unless you were Saurfang or Thrall, who were kept deliberately away from the main story until was convenient for them to return, I think Teld is mentioned once in the entire Horde BfA experience. By Lor’themar, really offhandedly. Blizz literally hid the damned event as much as they could. It was frankly shocking. Even Baine wasn’t allowed to discuss it.
As for your solution. Honestly, whatever. It kind of comes off as just an excuse to put on the team jerseys and then return to the status quo when its time to get back to the “real story”. Which, feels like just a waste of time, and is super immersion breaking. Truly, when the Faction Conflict is treated like that there is nothing else that reminds me more that population numbers never matter. Which ironically serves to only devalue an event like Teldrassil. Since pop numbers don’t count.
Beyond that, you do you. I’ve just grown bitter and jaded being forced to be the weak, ineffectual villain who Blizz can’t bother writing reasons for antagonisms against the faction we’re constantly forced to be antagonistic against. Combine that with Blizz’s fixation on insulating the Alliance from their own few acts of grey, and over a decade of DEEP neglect from Blizz to ever even try to rebuild what they keep breaking on the Horde … the Faction Conflict comes with MASSIVELY negative connotations for me.
Its an ugly, weak, vial little story thread that Blizz just wheels out and uses as an excuse to turn the Horde into a plot-device to settup a future villain and future expansion. With little regards to what they do with the Faction after, so they can get back to their comfort zone of “Alliance and Friends” writing.