I don't think you'll find many people caring too much if Biden tried to force gas prices down. But isn't this just what the Saudis are claiming? According to the NBC article they aren't even claiming it, actually. They're "suggesting" Biden might have. So in reality, we have no clue what was actually said. We'd need to see a transcript or audio to really judge.
This is probably why it isn't that big of a deal. And, as it was already pointed out, what Trump did was threaten to put millions of lives in danger to help himself personally. That's quite different.