Songs do not give performers tonys performances do. One song especially does not give you a TONY
I have to partially disagree with this. I think there are certain songs that certain performers have connected with and taken so far above the expectation that it has tipped in their favor. You can feel the electricity when a performer completely nails a song. I've only seen it a very few times, but the performer had the entire audience spellbound.
In addition, what do you do with the one song winners? For example, Betty Buckley won for Grizabella in Cats. You can't deny that the song Memory won her the award because Grizabella doesn't sing anything else and it's not like the character has a huge story arc. She drags herself onstage, sings Memory, drags herself offstage, reappears and climbs a ladder.
Patti LuPone won an Olivier for playing Fantine in Les Miserables (yeah I know we're talking Tonys). Fantine has one song and then dies.
If anyone ever tells you that you put too much Parmesan cheese on your pasta, stop talking to them. You don't need that kind of negativity in your life.