They paid more.
https://www.timesofisrael.com/israel-will-reportedly-pay-mor...
So Israel probably didn't really compete with the US for it.
>Israel will pay a premium price for the millions of COVID-19 vaccines it has ordered from US-based pharmaceutical company Pfizer, over 40 percent more than the US government or the European Union, Channel 13 news reported Sunday.
Not sure why you think this flimsy evidence holds when the author's actual intent is "nationalism is good actually." Vaccine distribution/contracting is significantly more complicated that this binary analysis.
In the medium term, vaccinating US people first and fast is a great way to sell them on building lots of production capacity.
[1] https://en.wikipedia.org/wiki/Operation_Warp_Speed [2] https://nypost.com/2020/12/16/biden-should-credit-trump-on-c...
Edit: Clarity