Meta research eng here

Yes, but also its much cheaper to build it in at the very start.

When we built pervert glasses research platform, if we'd just ignored the data privacy laws we could have built it much quicker. But, the only reason it took extra time is because

1) we had no idea what we were doing and

2) the lawyers had even less idea, so we had to do a bunch of reading and make a best guess.

Turns out the guesses were right, but it was painful getting the lawyers to understand.