Those two things (though I hadn't heard too much about either) fit into my cynicism very neatly.
Relations already are normalising to some degree, and perhaps the Israeli PM (knowingly or unknowingly, at the time[1]) got hitched to the idea of dropping his country's objections to the plane sales in return for the whole grandstanding US Embassy thing, or somesuch, but of course he can't speak for his entire country[2], and if the timing of this "good news bomb"'s deployment is at all rushed forward to play a major part in US politics/party-propaganda, it's at the risk of encountering blowback from the as yet unprepared local groundswell of opinion, and ruining what could have been a subtle shimmy into the clear air of mutual understanding if it had been left to develop without that one outside pressure.
(Or it could have failed after some other later thing, such as a 'clearly-sponsored' terrorist/military strike within the region. But it won't make this other thing less likely if there's an even bigger 'normalisation' for such an act to try to disrupt. Which is why even if a second-term Trump actually continues to 'press for peace'[3], I could see the whole lauded peace-process going far more badly than it is might be assumed to go well.)
Not that I'd prefer that, I just wouldn't be surprised. And what actually happens might be as unexpected to everyone as (say) a pandemic. Obvious in hindsight, but not what most people would have predicted[4].
[1] Like whoever it was got put on a 'sude table' in the Oval Office, the other day, to sign some important agreement with the US for his country, to apparently be surprised that this included an Israeli Embassy move of their own. Not seen much of that beyond the initial reports (positive and negative), it so quickly became buried in other effluvia, so probably I missed more clarifications that were necessary.
[2] Just the other day, he lost an ?orthodox? minister over instituting coronavirus lockdown measures, as it would impact imminent religious-holiday obligations for that significant part of the country for which they are (non-figuratively) sacrosanct.
[3] And not just just drop it, like the whole Caravan thing, once he doesn't need its existence in his narrative for his immediate personal advantage.
[4] And those that did were only considering it a possibility (among many other eventualities that could also have been "the" unexpected thing, and were considered possible by others who still await being acknowledged as fully-fledged Cassandras.