The net result is you have systems being put together using objectively bad processes and whose outcomes are guaranteed to be more expensive and less likely to work as intended.
A former employer of mine was a small startup in the intelligence analysis space, and had a product that generated a lot of interest in various government circles, as it solved some problems better than what they were currently using. The red tape to actually get any sort of contract approved was so tough to get through the owner seriously contemplated hiring a company whose sole purpose was helping other companies negotiate said red tape.
In the end, they pivoted to the commercial space.
To bring this back to the original point: I would love to have a super-simple tax system that didn't require paying third parties to file for me to make sure that I filled everything out correctly, and leveraged the tax code to best fit my circumstances. However, I do not have much faith that such a thing will come about anytime soon... once bitten, twice shy, that sort of thing.