While I do often feel that way too, it needs to be pointed out that Anime Corner is a bit of a niche site and this reflects only the opinions of 5408 people. Their polls are known to have a bit wack results at times. If you look at other sites, MAL for example has had 25k people rate the list's top entry, Sousou no Frieren. If you want to truly gauge something's popularity, it's worth looking at more than just one site.