Since that is a airline-related website, and you wouldn't probably believe me, but is this a possible case of very old backend systems running in batch outside

Since that is a airline-related website, and you wouldn't probably believe me, but is this a possible case of very old backend systems running in batch outside of office hours? This is such a serious issue that some legacy government websites, like UK's DVLA, to this day still has an operating hours (https://dafyddvaughan.uk/blog/2025/why-some-dvla-digital-services-dont-work-at-night/ https://dafyddvaughan.uk/blog/2025/why-some-dvla-digital-ser...)