Exactly. Plenty of little stuff that has been pulled. Deadman pedal (wow, for me that'd be a big one if I hadn't got that), Homelink, little hooks in the back (not a big thing but there it is), the frunk mat, the ochre rear window (this was dropped ahead of mine getting built, unfortunately), and so on as Tesla has refined to pinch pennies on cost. Benefits flowing to early adopters teaches the lesson for the future of "don't delay, get it early". That's pretty powerful marketing tool if you can build that attitude in the public.
And it isn't even like this would be free, it is just the opportunity to pay more money.
Of course there'd be a non-zero number of people squealing and whining, welcome to the Internet Era, but there just isn't any real moral grounds to be pissed about it and Tesla has done plenty with more actual reason to be choked about.
The one potential rub is for people buying the option that had already paid for Boost. Tesla might end up needing to give them credit for the $ spent on the Boost towards the new option. But that's a relatively small thing, and still would net Tesla more cash than not offering the new option.
