In tech/development, it's akin to someone building a system in some obscure language, because they are most productive and the only ones developing it today.. It's likely that system will end up being entirely replaced if the team maintaining it grows.
(To be clear, I'm not saying the Bakery made a bad choice, or what using obscure languages is a bad choice, or that optimising for immediate productivity through familiar - to you - tools is bad.. just that there is lots to think about when building a new system..)