That's one way to look at it.
We don't yet know how Lucid will handle activating these features beyond the trial. Personally, I am hopeful they will offer both options to "buy outright" and turn the features on permanently for a one-time fee and a subscription that will let you turn on the feature(s) one month at a time. Choice is good.
I know a few Tesla owners who love being able to turn on FSD only when they take road trips. Costs far less over the life of the car than having to plunk out the $15k all at once. And since the unlock applies to the car, not you as a driver, you would not have to spend an extra $10k every time you buy a new Air. You'd just keep paying the $100-$200 per month on the months you need. Win-win.
If they break it down even further and let you "buy" features like the 360 cam on their own, even better.
Like I've been trying to tell all my app developer friends for years, not all subscriptions are evil. Many of them make a heck of a lot more financial sense for the company and the customer.