I think just putting “Hey DMs, we hope you enjoy reading this adventure because it’s going to be a real pain when you try to run it! ” would do the job.
I dunno... I think having a book say "Roleplaying game adventure" already says that by definition.
Because for every adventure where one person thinks "This was the easiest and most useful adventure I've ever run!" there is another person who thinks "What the hell piece of crap was that?" Heck... if we have people right now decrying the Starter Set as not being a worthwhile adventure for new DMs, then there's nothing to be made that is going to satisfy everybody.