I think both points can be true at the same time. On the one hand, extraordinary situations do happen, and schools can be understanding if you communicate early and honestly. No one is denying that.
On the other hand, the safest assumption for something as high-stakes as an MBA application is that deadlines are firm and that you are responsible for building buffers, especially for things like LORs that depend on others. Accountability is not cruelty, and the application process is demanding by design. Different people phrase this more bluntly than others, but the underlying point was about accountability, not a lack of empathy.
As a housekeeping note: many common questions (including LOR grace periods and official scores) have already been answered above, many times. Please scroll or use the search option in
WhatsApp or Ctrl/Cmd+F on the web before reposting. It helps keep the chat useful for everyone.