I get it, but what a strange world we live in where we need a monthly subscription just to be able to power the vehicles we own.
This is a new model of paying for energy, but it seems weird to suggest that your ownership of the vehicle somehow meant that subscription-based versions of paying for power are an injustice.
Nobody is forcing you to take a subscription. You're welcome to power it for free all by yourself, with solar panels. Or, for all they care, build yourself a generator with a wood-burning fire and start chopping trees.
It's a whole different paradigm when you compare fill/charge as you go vs monthly recurring fees.
What you are talking about is usage based Vs flat rate billing.