At this time of writing, it is too early to declare the danger over, but at least three out of five Iranian tankers have made it safely to Venezuela (confirmation from
TeleSur and
PressTV). Furthermore, while we should never say "never", it appears exceedingly unlikely that the US would let three tankers pass only to then try to impede the arrival of the other two. So it ain't over until its over, but as of right now things look way better than last week.
Besides, this is mostly a symbolic issue. While these 5 tankers will make a difference, it won't be a huge one, especially considering the devastating consequences which the US sanctions, sabotage and subversion have inflicted on Venezuela.
Still,
symbols are important, if only because they create a precedent. In fact, I would argue that the latest climbdown by Trump is no different than all his other climbdowns: Trump has had a very consistent record of threatening fire and brimstone before quietly deflating walking away. And since he did that many times now, we have to wonder whether this strategy is effective or not?
One could argue that this strategy could be described by saying that you put the maximum pressure on the other side in the hope that the bluff will entice the adversary to fold. This could be a semi-credible argument where it not for a very simple but crucial problem: so far the other guys have never folded. In other words, Trump's bluff has been called over and over again, and each time Trump had to quietly deflate.
Comment: "This isn't part of the protest, this is kids taking advantage of a bad situation to vandalise and potentially steal." But perhaps more than that? There is suspicion that agents provocateurs were active in the area, and some accusations that Antifa was involved.