Disagree. He was the only person in the match who was involved in something that frankly was above the briefcase. He didn't need to have the briefcase for his feud with Punk to stay hot. Punk could have cost him the MITB match and it would have accomplished the exact same thing that the actual result did.
To be honest, Drew winning the briefcase wouldn't have even been a problem -- as in kayfabe, he was the best choice as he's the lone world champion/made man of the match -- if it wasn't so damned obvious how it was gonna go, or if he wasn't feuding with someone who is on record as saying that he exists only to fukk Drew out of happiness into perpetuity. His specific story didn't need the briefcase to make it mean any more than it already does.
One of WWE's biggest shortcomings, at least in the past, is that they never did a good enough job with building up the next crop of stars to be ready in case one of the top workhorses goes down. As a concept, MITB should always have at least one (two, counting women) in the cut who has been identified as ready to step up should the situation arise. Even if they lose the cash-in -- which is fine when properly executed because picking the right moment should matter -- that person is identified as someone who should be very, very relevant in the future.
Think about it from a creative writing perspective on a character like Cm Punk, If you're a stubborn a$$hole like Punk is, would you rather interfere in the MITB match or the title match when Drew thinks he's going to win? CM Punk literally told us on Monday Night that this shyt is personal to him, especially after Drew stole the bracelet and the symbolism around it. He wants to hurt Drew badly in the worst way so waiting until the title match to piss off Drew, who wants that world title bad as fukk, added an extra layer of salt for Drew and their feud so it made sense to me. I agree the feud would still be hot if the interference didn't happen, but it adds fire to the fuel for their potential rumored HITC match, so pour gasoline all over that mother fukker and let this shyt burn.
This isn't directed at you, more of a tangent because you stated you would be fine if the MITB holder lost it down the line, but I'm tired of people saying wrestlers need to win the title to make them stars. Is Damien Priest automatically a superstar because he cashed in and won the title or is he slowly growing his status because of the amazing title defenses he's been having with the storylines he's involved in and the screen time he gets now? If all WWE had to do to make stars was give dudes a title win then dudes like Miz would be main eventing and Jinder would still have a job. And I'm going to use TSC breh Larry's example again. Dudes complained that Sami should have beaten Roman to take him to that next level, just for those same complainers to cry about Sami beating Bron because Bron needs to be at the next level. LOL And this shyt isn't years apart.
But back to your response. Don't bring up the past breh. This isn't the same company as it was 4 to 5 years ago. Not every KOTR, MITB, and Royal Rumble match has to prop up the next crop of stars, especially if the top is already full. Was Gunther and Orton not already stars before they fought in the finals of the KOTR? Why does it have to be any different for MITB? So we can watch a guy unsuccessfully cash in for months upon months so we can call him a dummy?
And LOL tell that nikka Jey to get back in the bloodline storyline he ain't bigger than that shyt just because he got the crowd yeeting together. His matches actually bore me and I'm glad he's not a world champion
Edit: and oh yeah punk interfering in the title match has brought back the Seth and punk and drew combo feud so what are we really talking about right now