Somebody mentioned earlier on this thread, that some of the tech giants (Amazon / Facebook, don't remember the detail) was added several quarters after it reached eligibility according to rules. This mathces the old guard thinking that these youngster tech corps are not "real" companies so they have to prove themselves over longer period to be accepted -- in addition to the frowning upon of the use of ZEV credit sale revenue to push into profitability (which is just an excuse really). So it may take another year of straight profitability to be added. And if Tesla misses a quarter, then the clock restarts*...
* I know thats not how the rules state it, just the sum of 4 quarters supposed to matter, but reality is different, so any excuse will do