So does that mean that they won't be checking at the border in the future?
How many times have you been asked to show 20,000 baht to an immigration officer upon entry? It is the law, but they don't ask everyone.
What makes you think that they won't start pulling people aside to ensure they still meet the criteria to hold the DTV? Not sure how long you have been here, but things change daily, and pretty much every immigration division makes up their own rules.
Here is what is required to extend in country, so one should probably have all of these things available upon entry in case they are asked.