Maybe it's an argument for the other side though as well. The architecture of the system was designed to track people as much as possible so we could do A/B, app design, and marketing more effectively. It felt like it was the company's life blood.
I would say the law should at least make people get their architecture right when small so that when they're big it's not impossible to comply later.
One last thought: our company was small in head count but is getting much bigger right now in revenue. I've heard of small head count, billion dollar companies. What of them?