Because Dailymotion cannot make money from pirated Rick and Morty episodes via commercials from Adult Swim, they serve aggressive pop-up ads. Users searching for Season 1 often click through 3-4 external links before finding a working video. These external sites are notorious for:
Because Season 1 is often locked behind paywalls (Netflix in some regions, Hulu in the US, or Amazon Prime Video), users turn to free video hosting sites like Dailymotion to get their fix. Rick And Morty Season 1 Dailymotion