When all they need to do for compliance is to enable EU users to install apps without Apple as a middle-man then not much in the way of "personell/talents/headcount to handle all that crap" is actually necessary. What's costing them resources (and eventually money in the form of fines) is not complying.
It feels like some people don't imagine these companies to be ready for compliance. As if they don't have all the knobs ready to turn on a per-region/country/state basis as soon as the law changes and it becomes possible to lose even the smallest amount in stock value.
