Content is content.
There is a difference between specifically naming what you want and just using the umbrella term which is “content’
It’s heavily misleading to make the implication that a game is dying or is abandoned because the developers gave up on it on the basis of there being no content - because it’s untrue on both bases.
Especially when what they are requesting, has been addressed by the developers with a firm and reasonable response - which is that there are no new heroes because new heroes are being developed on the new engine and would demand redeveloping to be introduced.
Therefore, people making the claims are being in-genuine.