Indeed, bleve can be considered on the same level as lucene. It is used to power full-text search in Couchbase, which adds the distributed indexing and querying portion on top (similar to what elasticsearch does to lucene)
Sometimes it is depressing how little effort people put in to run a level playing field when doing numbers like this. The couchbase SDK used is from Mid 2013, with little effort the numbers could've been better..
