Unity/Unreal can talk business with Microsoft/Sony/Nintendo in a way standalone Godot engine cannot, and should not.
Unity is proprietary and Unreal is source-available; the companies have direct control over how you redistribute their engine (to collect funding). Agreements can be made between them and the console manufacturers. Godot engine is open source (MIT) and appeals to a different kind of game dev, where including proprietary code that requires a license would be an unusual juxtaposition to say the least. If consoles support is important to you then perhaps there is no issue but for others that is repulsive.
It gives unjust power over the devs (think in terms of the recent Unity fee fiasco). I wouldn't contribute to a proprietary project (that's just doing free work for a company) but I'd be honored if an open source project considered my contribution worth something to them.