Well I think he was very popular at the time in fact more popular then Da Vinci at the time. Da Vinci was remembered better then Tintoretto mostly because people probably saw Da Vinci as a nut. At his time Da Vinci went to court and was fined for having relations with a younger male. (can't remember where i found this but it was in one of the articles I read) so I think da Vinci was remembered more and so his pieces where preserved and praised more throughout time, because he made himself into a celebrity.