Ok, you don't know what you are talking about
The Dolby number you are citing is the number of individual audio objects that are supported after mastering. You can have thousands of objects but when "mastering" those get reduced to the 128 that Dolby Atmos supports.
The number you are quoting for Tempest is the number of objects supported before "mastering" them. It will never output more than a hundred.
Disclaimer: I'm using mastering to name the process of mixing down the sound from the multiple 3d sources to what the audio processor outputs although that's not precise.