Yeah - A game is (generally) a one and done enterprise. Like a start up it's all about getting it out the door, there's little to no expectation of having to maintain it for any real length of time.
Fortnite, Roblox, League of Legends, Counter Strike . . . all very short term projects.
That meant I could attach Cheat Engine to Roblox, edit memory addresses to give myself in-game cash, and inject whatever code I wanted to everyone else.
Thankfully it was sandboxed so I couldn't give people viruses.
This was probably a good decision because most of Roblox's best games from that period weren't updated to use server functions. It's too difficult.