FSD as sold today is not a "diluted L5 version" it is explicitly L2, and says so in writing during purchase. Aspirationally the company certainly hopes to and plans to deliver far more- but they don't "owe" you any more per the terms of sale than L2 autosteer on city streets.
The pre 3/19 version was (at least) L4 in writing during purchase (you can debate if it was describing L4 or L5)
So yes- what was promised to 3/19 buyers is significantly greater than post 3/19 buyers for FSD.
But as I said, this only matters if Tesla
fails to be able to deliver greater than L2 on current HW (or something reasonable upgradable from current HW like just swapping the driving computer up to HW4 or whatever).
In THAT case the difference will matter as far as who might be owed $ back or some other compensation.
If they
succeed at delivering >L2 I expect both sets of buyers will receive the same thing, up to and including L5 if they can achieve it.
So if you are confident they will get to L5 on existing (or reasonable upgrade from current on existing vehicles) HW then trading won't make a difference to you at all.
If you're not, then it might make a difference to you.
Again- the change in wording accomplishes two things:
1) It allows them to recognize all remaining revenue for post 3/19 buyers much sooner (specifically, as soon as they deliver L2 autosteer on city streets- since it's the last specifically promised thing.... they still could NOT recognize 100% of the remaining revenue from pre 3/19 buyers but that's pocket change at this point)
2) It significantly reduces their liability if they decide they're unable to deliver L4 or L5 on current HW.
Folks wanting to argue about how likely #2 is I'd suggest head here- where there's been extensive discussion on that for a long time:
Discussion about AI, Tesla Bot, Tesla Autopilot (AP), the promise of Full Self Driving (FSD), as well as other Autonomous Vehicles.
teslamotorsclub.com