I really doubt you have any real world experience with AWS if you try to sell it as a less complex alternative to anything,really. AWS is perhaps the most complex and arcane service provider ever, and is progressively getting worse by the way the service keeps growing and changing.

And no, learning a specific AWS service is not a solid career investment. Tell that to anyone who tried to learn CloudFormation and then SAM and now forget everything because AWS pushes you to use CDK.