Yes. RDS is a very reasonable choice if you are a tech company, let alone a govt org. The alternative isn’t “let’s host this ourselves” it is “let’s host this with Oracle at a much higher cost”.
On RDS we had inexplicable spikes in cost, deteriorating support and no real support for any of our issues. When we tried using DMS, it just didn't work as expected, even after spending two days on the phone with their support.
By golly, the government can't do business if it isn't a datacenter operations company, a software vendor, and a car manufacturer.
I mean, precisely, which is why some countries are rapidly turning into failed states. Too much buck-passing and outsourcing.