Gore contested his loss. Was that actual subversion of the process?

If the election is close, I think the loser has a duty to contest the loss. Trump contesting the election would be every bit as right as Gore contesting the election.

What is so bad about this? The reaction people are having is strange. It's as if people are purposely misinterpreting Trump's words as implying that he will march on Washington D.C. with a militia. The realistic assumption is a Gore-style lawsuit, and there is nothing wrong with that.