It's fine. Definitely a game of its time with lives and permanent death, albeit helped significantly by the inclusion of warp pipes. Sure, it is not the first game that featured Jump Man/Mario, but
it is the first Mario game, and for the ideas it brought and that stayed in future titles, I think it's a great game.
Also, I feel like beyond 2D Mario games still releasing to this day, Mario Maker is probably the series that keeps this game relevant the most. That being said, I feel like everyone has seen 80s Mario, so I don't think he has to be featured so often in promotional material