This would be interesting if its RF only, and not cell related (like OnStar, subarea app on your phone that can start your vehicle). I know with Chevy without paying for the app access you can remote start via RF with the physical key fob. Seems like Toyota wants to charge you around 80 dollars a year for this after 3 or 10 years. (I didn't super dig on this)
it seems everything is going to subscription n service cause the accounts people love to see the monthly income.
hopefully Toyota will re think this move.