No, not really. "Importance" is a rough proxy for legacy and influence. This is why one can say without any trace of subjectivism that Shakespeare is the most important writer of the English language, or Kafka the most important writer in modern German, etc. Maybe this is slightly less rigorous in the case of '2666' which is still a relatively young work, but it is widely hailed as a landmark novel.
No, not really. "Importance" is a rough proxy for legacy and influence. This is why one can say without any trace of subjectivism that Shakespeare is the most important writer of the English language, or Kafka the most important writer in modern German, etc. Maybe this is slightly less rigorous in the case of '2666' which is still a relatively young work, but it is widely hailed as a landmark novel.