After clearing two rounds pwc hr casually tells that the position went on hold...why you guys waste so much time?.how they call them as big 4 when the jd doesn't match the questions they ask

There were 3 interviews and they didn't show up to the last one. The interview process went well until that point and they told me I was the top candidate but they had to freeze hiring. Unfortunately, no offer because of that but they should have communicated.