What the hell is going on with altars

These seasonal alters are some serious b.s. paragon 230 all glyphs above level 80 with full masterwork gear from running countless NM dungeons. Haven't seen a single altar

Edit: a lot of people saying just run hoarfrost over and over again and while that might work i dont believe that is fun or engaging game play that the devs had intended after explicitly stating the altars were all over sanctuary many dungeons