@Audrey Ezeh
Lol. I guess it was you I was referencing.
I get your points however I would just say that just because someone can hit a low FI number doesn't mean they are going to stop there. They can have goals that are much higher and work towards that but they have still attained FI quickly meaning their passive income is equal to more than their living expenses.
I have attained my FI number in 3.5 years but I'm not stopping I'm just transitioning that new freedom into making even more passive income.
So in your case I think what you were saying is that 85sfr at $200/door is your ultimate goal, but is not the amount that you "need" to be FI.
Lastly I would never say someone has to live on 60K per year, that is their choice but if they have a desire to achieve FI sooner the lower they can get that "need" number the sooner they can be FI. This is not for everyone, many people would rather not sacrifice their lifestyle now in order to no longer need a W-2 job.