If you're fighting giant centipedes, you ain't raising the dead, nor are you going to be able to afford to pay someone else to do it. And the assertion that "D&D is a game of trial and error with a whole lot of risk taking" describes a very specific playstyle, which is far from universal. Most groups I've played with have preferred a fairly low body count, so players have more of a chance to develop their characters and become invested in the plot.
I'm not sure where you're getting these stats. Or is this something of your own devising? I don't have a 1E Monster Manual handy, but I had a look in the OSRIC ruleset (which, as I understand it, replicates the mechanics of 1E faithfully) and there's no mention of a second save. It bites you, you fail the save, you drop dead. Later editions made the poison paralytic instead of lethal.
I might add that no real-world animal has poison that can kill you inside of a minute. Even cyanide doesn't work that fast. And I can't imagine what "other actions" you're supposed to take, in 1 round, to save the victim.