Amazon is on an investing cycle
I have been invested in Amazon for a while, its not uncommon that all the CAPEX is being reinvested in the business and they had tremendous success over the long run.
I am certain that it will pay off, not only they have a backlog but they also are the leader with AWS in market share.
They need to meet the upcoming demand.
Near term sentiment is low with the SaaS sell off and the spend is justified. I would take a closer look at the price as it goes lower. Could be a great buying opportunity.