Currently we have Ibn Abbas revelation order, which can be used to sort search results. For example you may want to know the evolution of the root "S L M" during 23 years.

Unfortunately, current revelation order is sura-by-sura. There are, however, exceptions in a sura-by-sura order, that is, ayas in a sura, which may not align with the revelation order of the rest of the sura. This arises the need to an aya-by-aya revelation order. We have not ONE revelation order, since there are different narrations of which sura precedes which. There are even some scientific speculations of revelation order, which cannot be totally accepted without more historical evidence.

Finally, I accept that we should allow users to see Quran in a revelation order.