The odds of staying in that position are very far from certain. We certainly could, but that is quite far from a near certainty. A 4-game winning streak can happen, and it can take much, much less than that.
Let's quantify that "could", can we?
We have two things that can foul up our positioning:
1. The Pels, with no incentive to tank, do not win more than the Jazz in psycho tank mode, AND at least two of the Grizzlies/Bucks/Mavericks win less than the Jazz. The combined odds of both these things happening are, in my opinion, extremely low.
2. The Pels, with no incentive to tank, DO win more than the Jazz in psycho tank mode, BUT all three of the Grizzlies/Bucks/Mavericks win less than the Jazz. This is, in my opinion, a bit more likely than the first scenario, but also extremely low.
If either scenario hits, our odds of keeping the pick drop below 85.7% to around 60.7%. In other words, it would take an extremely low odds just to even be in a position to have a 39.3% chance of losing the pick.
Personally, I think the odds of either scenario 1 or 2 happening are 10% at most, probably lower.
Odds of keeping the pick become 1 - (10% x 39.3%) = 96.07%
But let's say you disagree, and say the odds of either scenario 1 or 2 happening are double what I put, at 20%. 1 - (20% x 39.3%) = 92.14%
Want to increase it even further to 30%? 1 - (30% x 39.3%) = 88.21%
I get that this is a real simplified exercise and not precise, but hopefully the overall point has been conveyed: We're in the ~90%ish range of probability in keeping our pick.
I wouldn't describe those odds as "could happen", as you have. I'd describe them more as "extremely strong".
Is it hyperbolic to say we're keeping the pick for sure? Obviously, nobody can guarantee anything under 100% odds. Are the posts we see every single time the Jazz win about how catastrophic the win was also an unwarranted overreaction?
Yep, big time.