That's a very respectable and rational stance and opinion to have on funerals.
There are many cases of people feeling even worse at funerals cause the whole thing basically constantly reminds them the person is dead, and forces them to focus on it exclusively.

But sadly, culture has basically drilled it into people that "going to a funeral = respect". So naturally they make the connection of "not going to a funeral = disrespect". It's silly and irrational reasoning, but people were raised to think that way. So you're going to get flak for it, even if you are fully in the right.