Clueless
If this is his level of understanding of government after 7 years, then we are well shot of him. For central government, there is only one Home Office, or DWP/HMRC. They have pretty unique requirements, that are not the same as any other organisation, so they have bespoke systems. Leveraging in COTS products creates the sort of nightmares that the CSA faced when using a system from Florida that couldnt handle such arcane concepts as VAT. Yes, where a service is generic (postcode checking, input validation etc) then a cloud service is usable, but not for most caseworkers and policy makers/knowledge workers, who will really love that application latency as their screen redraws as data comes back from India, Iceland and Indiana, rather than the empty datacentre in the basement.