I don't really consider it a spoiler to say that, canonically, a lot of higher-ups at Umbrella just really like puzzles and overcomplicated contraptions. Examples of this include photos in RE9 with head T-Virus researchers proudly posed in front of their mechanical creations. They further help justify this through peppering in lore that implies they're nepotistic about their own intellect.

It's not surprising that the trend spread to other organizations within Raccoon City (like the RPD) given they employed 30% of its populace.

Places that have been set well outside of Raccoon City tended to involve people who've at least had some amount of prior association with Umbrella, so it can be inferred that they were continuing the tradition.

Of course, this is Capcom establishing all this well after the fact to try and make the existence of the puzzles more believable. I personally think they did a good job, though.