Enrahim
Adventurer
Even if the campaign was supposed to be based on the Hobbit, with the opening scene set in Long Sea during Smaug's attack to establish some cool context?If the DM killed of your level 1 characters with an ancient red dragon in any edition they were being an a-hole in my book.
If the players somehow manage to find an exploit in my descriptions that allow them to get in position to fire off something that actually do damage, while actively delaying Bard (rather than assist as anticipated), I would really struggle to see what would even motivate me to search for a way to save them ;P
But yeah, as a general principle with possible exceptions I guess I agree with your statement.