You'd like that wouldn't you? Not because you care about US interests, but more because you think the Palestinians would gain advantage from it. Well let me explain to you why you're wrong.
There is a lot of speculation, wishful thinking, ifs and should and want-tos in the article by who else if not the Guardian. (For instance the falsity that Israel's relations with Turkey "were compromised" by the flotilla incident, when in fact the Turkish government sent the flotilla with the intent of using it as an excuse to distance itself from Israel and grow closer with Iranian buddy Ahmedinejad). I don't have time to go over everything. But lets suppose the US does step down its support for Israel. What will happen and how will it affect US interests? Let me offer some speculation of my own. If the Guardian can then so can I.
*) Without US influence there will be less incentive for an Israeli right-wing government to make any concessions to the Palestinians, the peace process will stall even more than it is stalled now. Did the Palestinians gain any advantage from 1948 to 1967 when the US and Israel were not yet close allies?
*) With a strong US ally, Israel could afford a degree of moderation with its neighbors. But if that situation changes then Israel might be forced to deal harshly with existential threats, such as a nuclear capable Iran. Without a strong US ally Israel will would be more vulnerable to a nuclear threat by Ahmed-"die you Zionist dogs"-inejad, and thus would be more likely to bomb Iran's nuclear facilities. If this move is successful, Israel will gain significant power in the middle-east, as in "don't fuck with us". If not, the whole region may plunge into an all-out war, which is not in anybody's interest including the US.
*) Due to the large number of Jews and powerful Jewish lobby in the US, any US administration that distances itself from Israel will lose the elections and lose critical political power, giving way to an administration that values its strategic allies.
*) In the meantime, Israel will ally with some other superpower who knows whats good for them such as Germany or China. Just as Israel flourished without US support from 1948 to 1967, so it will continue to flourish. US will lose critical influence in the middle east to Israel's new ally.
*) Tens of thousands of jobs will be lost in the US, as the majority of US aid to Israel is actually spent in the US. Leading the US administration to lose even more power as above.
*) Israel may suffer a short-term loss of cash, but in the long term Israel's economy will grow and become more independent. Things Israel relied on the US for, it will either produce itself or import from other places. And Israel has no shortage of technological capability. In the 80s the US gov even stopped Israel from producing the Lavi, an Israeli combat aircraft that would have kicked ass of anything that existed then.