To me, the name “big bang” is along the lines of calling the Higgs the “God particle”. All of us who are armchair scientists know Higgs actually called it the “God-d$mn particle” because it was so difficult to physically pin down. But the name has taken on an almost occult/religious life of it’s own in the popular mind that has little relationship to the original meaning.
We know that the big bang wasn’t actually the “beginning of all”, just the beginning of THIS universe once it dropped out of expansion…and by that time our Universe wasn’t a primordial single-point anymore and there where multiple “bangs” in different places as expansion there dropped off. So, yes, the name isn’t very accurate anymore. But good luck getting most to grok this LOL