The whole game is build on artificial mechanics and arbitrary rules.
The point is that it is very unlikely CCP designed those rules to produce the current freighter ganking meta. Sure, they intentionally made capital ships slow, and intentionally build CONCORD to protect people that do or do not engage in specific behaviours, and chose bumping as part of the physics mechanics of the game, but how it works today as a culmination of many player decisions and thus an emergent situation.
That doesn’t mean CCP use their godlike veto powers to change things they don’t think make for good game play, but such heavy handed meddling in the sandbox is kinda against the ethos of a sandbox game like Eve, and honestly usually doesn’t work or creates other problems as players change their behaviour and new emergent game play evolves.