It's important to keep in mind the scale. The US is producing around 15 million barrels of oil per day.
The projects mentioned in the article, combined, would be less than 6 months of the US production.
It's important for the locals in Alaska, but it's not going to change anything globally. Except maybe killing off a few endangered species and damaging the fragile ecosystem. But that's a small price to pay for oil companies' profits.
Even close to 6 months of US capacity is huge.