I note that since my first sonota , the Ashmanov test has changed a bit, new requests and test sites for them have been added to it, while other requests have been removed. I tested Exalead according to the requests that were included in the quality test at the time of my first sonota.
Only 21 requests. Exalead responded with verification sites for 12 of them. For these 12 requests, the average position of the verification sites is 1.5, which exceeds the Google indicator (1.64), which is currently the leader in this test in Ashmanov and Partners. ')
It looks like Exalead has no support for Russian morphology (or it is carefully hidden), however, this search engine is already looking for quite well on Runet. For reference, the Exalead database currently contains more than 8 billion indexed pages.