Were they a 5E GM? If so they may be extrapolating lessons from.5E onto.Draw Steel -- specifically that you have to go.Hard or Deadly to make it worth the time investment.
Dragons is right in the name. Yes, big ass dragons are awesome BBEGs. I love city buster dragons. But I also like the idea that the 2nd or 3rd level party can take down their first dragon and enjoy the victory and it's modest hoard. Being someone who grew up with BECMI and AD&D, i totally...
I don't think 6E should be either Shadowdark or Daggerheart (even though I believe that if 6E came out as one of those 2 rulesets people would love the new D&D). Those games exist. 6E should do something only WotC can do. That means scale and reach and broad appeal.
Imagine if 6E actually...
For a long time there were weird "rules" based on how things were licensed. My guess is that Namor was part of the FF "group" and that seems to be back in the hands of Marvel.