#4: The 60-Minute Iron Man Match
It is easy to see why WWE doesn't want to bring back the Iron Man matches, as they are incredibly time-consuming, and, with the currently loaded roster, they would take up a lot of time on a show to showcase just two participants.
Another crucial issue would be the fans themselves, as the WWE Universe can be fickle, and turn quickly on a match, as evident with last year's 30-minute bout between Dolph Ziggler and Seth Rollins at Extreme Rules 2018.
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However, the flipside to that argument is that, if a storyline is worthy of it and the wrestlers involved are talented enough, an Iron Man match can be absolutely incredible and easily more impactful than two or three throwaway matches.
There have been some classic Iron Man matches in the past, and, even if WWE wants to dedicate just 30 minutes rather than a whole hour, they can still be good.
Finding the right participants would be difficult, but given the conditioning of some of the top Superstars in WWE today, it wouldn't be an impossible task.