Amazon blog:

Company will invest over $350 million globally to increase pay by $2/hour in the U.S., £2/hr in the UK, and approximately €2/hr in many EU countries for employees and partners who are in fulfillment centers, transportation operations, stores or those making deliveries so that others can remain at home.

And:

We also know many people have been economically impacted as jobs in areas like hospitality, restaurants, and travel are lost or furloughed as part of this crisis. We want those people to know we welcome them on our teams until things return to normal and their past employer is able to bring them back.

No matter what you think of Amazon, the company is playing a critical role here, getting goods and food to people who cannot/should not be out and about. Amazon delivery people are on the front lines, much like postal and retail workers. To me, those raises are hazard pay.