It might have been selected just for reliability sake. That is how especially militaries usually want them. better to have a tested lesser product of the last gen, than to have the current gen wild card tech that may or may not have a intolerable amount of bugs and problems that could in a combat situation get the ship wrecked and the crew killed.
as always in government, you get the minimum that satisfies the contract.
This is true. That is what you get when you combine governments nearly unlimited budgets with private profit seeking and very little to no oversight. It's either audit the private contractor in everything all the time or have some state company or institution do the product or service for you.
Hey it still works and does it's job it was designed to do. The problem with driving in a model T is that you can't easily get a mechanic, manufacturers support or spare parts if something breaks down or you want to like want to install a new modern sound system for example. Like with the floppy disk the real problem is that they can't upgrade it very easily and make compatible with the upgrades that is ten tech generation ahead of the existing systems, not that it's old per se.