Lower peak prices will have corresponding higher peak prices.
Part of the reason we have the current extreme lows is because the coal that we currently need cannot be turned off and on easily.
In the long term, when we have sufficient storage to time+geo-shift the required cheap renewables to where they are needed, yes, everyone will benefit.
In the next 10-15 years, I predict massive problems as the existing coal infrastructure is run way past end of life, regardless of our eventual goal being Nuclear or Firmed-Renewables.
The only certainty is that coal is a shambling zombie.
I do predict the connection fee going up, and if enough people disconnect (which they will at a certain price point), I see the connection fee being rolled into people rates like the local bin collection - you'll pay whether you use it or not, just because it goes past.
The people that set the price floor currently are the coal burners.
The contracts that they sign with AEMO is why AEMO keeps curtailing the large wind and solar farms, this is why various jurisdictions are getting the ability to stop houses from exporting power.
The maths of supply and demand are tricky when you can literally curtail your competitors supply.