True, but if the course maker changes they said would be coming actually arrives in a form even closely resembling what they claimed in order to $ell the game (course maker and GPS applet to be specific), then it's somewhat moot. If I can drive around my own chosen circuit (nearby streets, some old horse trail, whatever) with a GPS applet running and record a virtual track, then to a large degree, mission accomplished.
Admittedly, it's not truly "open world", but afaik it's as close as we're going to get.