I think the biggest fear amongst critics is that the election will be fair and honest.
If it were really a good idea; if it were really supported by Congress and people really needed it, the ruling party with Present + Congress wouldn't condition it on them winning more elections.
Any comparison to policies like "elect me and get free education and free healthcare" are statements based on policy positions, and usually coming from people who don't have the power to make that happen alone. Trump and GOP have the power right now to try to do what he said, but they won't.
Calling it out as election interference now shows a clear bias.
We are in agreement that the #1 concern for the midterms is that Americans will vote honestly. Trump was removed from office by honest voters, after his failed attempts to malign them.
Find me one example of Obama or Biden promising that they'll give you free shit if you vote for their desired candidates.