I don't see anyone saying gameplay is objective and presentation is subjective. You seem to try to construct a strawmen. What I can see is, that many people say they prefer NSMB-gameplay over Gunman Clive-gameplay. That is OK. It would also be OK, if you say you don't like NSMB-presentation. What get's people upset is, that you recommend Nintendo should change the NSMB-formula. Because these people like the formula as it is. If I would say Sony need to change the Uncharted-formula or Ubisoft the Assassins Creed formula to match my preferences, people would also be upset. And they're are right: all three games sell multiple millions, so everything is fine with the formula of these games. Although I personally do not like all three.
Gameplay is as subjective as presentation. Sure, we all can agree that Uncharted has a better presentation than Pong and that QTE's are a lazy gameplay-mechanism without deeper value.
I personally don't like Jump&Runs. That's why the gameplay of NSMB gives nothing to me. I prefer the gameplay of Battle for Wesnoth, Etrian Odyssey, Baldur's Gate or Pen&Paper-RPGs. But if I would demand Nintendo should change the formula for NSMB and create turn-based-fights like EO, that would be foolish of me. And it would be foolish of Nintendo if they actually did that.







