To be fair, if you're not doing Savage meld as you like. Ten will occasionally make a fatal hit a close-call, which can happen more in Normal content where groups aren't as predictable and the dps stats will give you +1-2% dps. There are very few enrage timers or real dps checks on Normal, so the chance your dps melds saved a wipe are probably the same as the chance your Ten melds kept you hanging in there on 1k health to recover a messy run and save a wipe. Pick your preference.

On Savage and above, enrage timers and dps checks are very real and mechanics (done correctly) are designed to be survivable and easily healed even with 0 Ten (done incorrectly you die regardless), so the dps melds are absolutely superior.

People ranting about too much Tenacity on Normal Eden are just spouting things they read on a guide without a real understanding of it.