Do not hesitate to click `I have the same question` if you also think it should be improved (to draw more attention to the thread).
And you're welcome to post your comments if you have something to add.
Good news for us, folks! thatJeffSmith-Oracle, who as far as I know is now responsible for development of ORDS in Oracle, confirmed (https://www.thatjeffsmith.com/archive/2018/07/version-18-2-is-now-available-sqldev-sqlcl-datamodeler-ords/#comment-144262) that the developers are aware of this weird behaviour.
So, maybe in some future we'll see much nicer ORDS error messages.
we were aware of your issue as soon as you posted it on the Forums, we do monitor those pretty closely
for any sort of official response/notifications around your request, best to log it with My Oracle Support