My take on it is they were simply not an economically viable venture for TruGolf. Remember the prices were reduced - obviously in an attempt to get more users.
Now whether the initial agreement was for a defined period or on-going I do not know. But I think when TruGolf saw the limited demand they pulled the plug on further development.
Also bear in mind (like the prospective advertisers) that WGT had X Million users. What was not divulged was half of them were dead accounts, multis or test accounts.
Whether the fee is ever dropped is unlikely/ debatable, but I would be shocked if we saw any more of these courses.
Edit - as per your older thread David, IMHO there is no excuse for not having these courses at a CC level.