You're still ignoring the point, price of gas has no bearing when comparing a BP EV to a non BP EV. The non BP EV will always be cheaper, and BP without a swap station has zero added value. Basically it seems BP can only be successful if they have a monopoly on EV's, which is not going to be the case in most places. BP strong armed their way into Israel but will probably be irrelevant in most other locations, especially as battery technology continues to improve, eliminating the small advantage that swapping might provide.
BP are doing something special in terms of customer service. You have no idea because you've convinced yourself they will fail. EVs are not supported today by gas stations at ever corner. EVs now need, and for some foreseeable future will need, special help. It's possible that, absent switch stations, BP have a role to play. We'll see. I agree the value model is much slimmer but so are the operating costs.
Just consider this possibility: when you sign up with BP in Israel you agree that they control the current flow to your car. Just plugging in doesn't guarantee that charging will start. In practice today in Israel I don't see a lot of evidence that they're doing this but the equipment and the legal permission are there. I have a "Priority" button to override this behaviour.
In other parts of the world like the US and the UK where there are cheap night time tariffs, EV owners have to research these tariffs, apply for them and then remember to set whatever timing device their car comes with in order to access cheaper power. If they make one mistake either their car costs more to charge than they thought or they wake up to a flat battery (I've done this once when my child disconnected me on the way out of the garage, fortunately I just had to drive 8km to switch it!)
They can offer to charge your Leaf to 80% every time. No matter whether you've plugged in at home or at a public charge spot. Nikki at GCR was wishing for this with the Polar network where her partner is charging their Leaf everyday in Bristol. Easy for BP to implement.
I agree, today's crop of early adopting EV owners probably manage this OK. My wife can't remember to plug her phone in! She would never do this on her own. BP are in a position to show up, offer you a home charge spot with power at a LOWER rate than your utility and still make money.
Perhaps they'll let you on-peak charge 5 times a month on demand, perhaps they'll just surcharge you if you need a 5pm peak top up. Who knows.
And once the number of BP cars on their system becomes significant, they are then in a position to bulk buy electricity from the provider putting them in a strong position, again to offer if not lower then just the same price with added service benefits and they keep the arbitrage.
And then we get to the future Car to Grid applications: one car back to the grid is hardly interesting for a utility. A whole network of thousands and suddenly BP have a negotiating position.
The point is you're completely ignoring these opportunities in your rush to say BP add nothing.