Are you looking to remote start from the fob, or from an app? I agree that if it's done via the fob, that shouldn't require a subscription. But I understand that something requiring a cell signal will usually be paid, one way or another. I prefer it not be baked into the cost of the car, since some people (me) will not want that feature.
Even if it was from an app, why can't I use wifi/bluetooth? Even if it depends on a relay server, why can't I load my own sim and run my own relay?
Key fob-based has worked great for me in a variety of living configurations (apartments, single homes) in the past 7 years with my 2017 civic. It can connect surprisingly far distances, and it doesn’t need a direct line of site or anything. Just good old RF.
I get what you’re saying about app-based. My civic has that too and it’s for a cost. I’ve just never needed it since we have the free for life RF version.
At $110/yr for cell-based remote start via Honda link, I’ve saved $770 over the years. Over the life of the car for me I could be looking at doubling those savings. That’s the power of avoiding needless subscriptions.