Only them know, but you might want to consider what is their financial advantage in supporting DLSS, an NVidia tech which not compatible with their flagship hardware running the game:
They haven’t talked about AMD FSR though during the Q&A or did I miss it?
And honestly anytime DLSS or AMD FSR is brought up, they tell their TAA technology is better anyhow, [auto-censured], it must certainly be true then.
PS: one thing for sure, you can already use DLSS and FSR with other games, and some of these do have a much more open SDK allowing 3rd parties to do the 1 day work needed to code and implement FSR and trying it out. When it is on the market, then you’ll know whether DLSS fits in or not for the use case of “flying an aircraft above the ground” (I don’t want to use the word simulator to not let the reader thinking I’m talking about X-Plane 12).