Ironically, we sort of have a world where Legacy and Baron Blade are both friends and making out - the world of Weekly One-Shot #270, in which Young Legacy and Heroic Luminary were out on a double date with Expatriette and Setback, only to be attacked by Ambuscade!
We don’t know anything else about this setting, and also Christopher and Adam did not write the summary and had no input into its existence and I believe someone asked them a question about it once and they were utterly baffled, but it’s still canon because every Sentinels game is canon!