Still no fair game play reason why an additional penalty is required. One of the unfortunate historical aspects of our sport has been retaining "golf" in the name (See recently departed Stancil Johnson's #009 remarks on this.) We're so worried about emulating golf and its rules that the sport is losing sight of the "most fun wins" aspect of throwing discs, and in this case, at targets. Ball golf has 1-shot penalties plus sometimes loss of distance for errant shots. The 2-shot penalties or DQ are primarily reserved for doing more deliberate acts.
Historically, even OB was officially the equivalent of a 1-shot penalty where the player marked inbounds where the ball went out like our basic OB penalty. They also tried the OB penalty as simply a re-tee with no added penalty stroke, just counting the errant shot, exactly what I'm proposing. They were reluctantly forced to the current stroke and distance penalty because in one case, the lie might be poor where it went out, and in the other case, the location where the ball went out wasn't known. So, they were forced to penalize both scenarios for consistency, not necessarily because the infraction "deserved" that level of punishment.
There really is no need for compounding penalties. Medal play is basically a gang version of match play, especially when the players you're competing against are around your skill level. One error in match play and you likely lose the hole. Piling on extra strokes doesn't matter. In fact, for ball golf handicap calculations and play, your score is capped. And under their latest rules, the club has the option to cap scores in scratch play events.
Ball golf has finally come around realizing certain rule changes make the game less punitive, faster to play, and more fun to play. They want to encourage participation in an environment where more courses were failing at least before Covid. Disc golf has been going backwards in this regard with "fear of Par 2s" as one factor underlying recent permanent and temp course design efforts with more OB areas, lost discs and the perception that much longer courses are required, thus making the game less enjoyable for those already playing it and reducing the size of the market who have the ability and willingness to play this evolving, punitive format.
Note that we have few pay-for-play courses that are financially successful on their own without subsidization by not-for-profit institutions or passion projects of private course owners who don't generate enough income to justify "paying" themselves. Our Mulligan and funky Putting league formats have produced significant participation increases over conventional format leagues with more scoring opportunities and less disappointment. That should be the direction of our game.