Just to tell you a story from my career. A teacher dies. He had left the school a year earlier, so the previous school year. A huge comprehensive in London, so most pupils in the school had never come across him. Also only some of the staff knew him. ( A very large staff and a high turn over).
Staff in his department applied to go to the funeral. keep in mind, he had been part of some of their daily lives for over a decade. This was refused, he was not a relative, and he was not even a current member of staff.
This happened 5 years ago. the department has not even been 50% fully staffed since, the school lost the goodwill of the entire department, the post holders resigned their posts, a large proportion of the department started looking for new jobs, and within a few terms most had found them.
In this current climate, teachers simply cannot be replaced. That department is still filled with temporary agency staff.
I know there have to be rules and regulations around funeral attendance, but sometimes strength of love just cannot be classified, and goodwill is priceless.
I had left the school myself, and was working in a school where the dead teacher had never had any connection ever. I applied for funeral leave. My head said " I'm sure you wouldn't be asking if you didn't need to go". I was the only member of his old department to be allowed to go, and my head kept my good will and loyal service for a further 5 years, until I chose to leave teaching.
One day of disruption, even full closure, would have been a small price to pay for being short staffed ever since!