I would love to see some data here. What service outages? What’s your infrastructure like? What’s your DCs uptime?

There’s a few confounding factors to address before you get to the believability of the claims (which are remarkably dubious). For starters they’ve only spoken about the AWS region which is least reliable by design (as it is the first to receive new features), and they’re talking about a 10 year time span (AWS in 2010 was much less reliable than it is today). It’s also not really clear what they’re talking about when they say AWS. If it’s just the core features you’d need to forklift an on-prem service into the cloud, then the claims are especially frivolous, but the SLA difference between EC2 and AWS Ground Station is more than an order of magnitude.

Even if their claims are true (which I certainly don’t believe they are), you’d be more likely to get better uptime than EC2 with a small on-prem setup through dumb luck rather than through deliberate planning. Something still has to go wrong for you to have an outage, and you’re more likely to get an incredible lucky streak than you are to outperform their entire AWS infrastructure capability with a few people and half a rack of servers.

Are you from AWS marketing :) ? AWS SLA is meaningless as there are no meaningful penalties.

AWS outages you can google details

2011 April 21 Outage

2011 August 8 Outage

2012 June 29 Service disruption

2012 October 22 Outage

2012 December 24 Outage

2013 September 13 Outage

2014 November 26 Service disruption

2015 September 20 Outage

2016 June 5 Outage

2017 February 28 Outage

2018 March 2 Service degradation

2018 May 31 Outage

There’s a terrible amount more information you’re missing here. What services were you using that went down? (not what services went down, how were you affected) What is your availability for your DC? it seems you’re being light in the details and perhaps there’s a reason why.