Roman, Seth, HHH, Orton, Bautista, Charlotte, ect. didn't toil in the midcard for over a decade before they ended up in the main event and holding their first titles. Whether or not they "were ready" is and was irrelevant. When they want you in the main event, they put you there and don't care about all the things they claim to have concerns about with black male talent.
Mark is looking at it from his perspective as someone Vince never saw as a main event talent until he needed a new monster & was finally open to giving Henry some flowers. They had you in a sexual relationship with a geriatric who gave birth to a hand, bro.
This company and the fanbase will come up with multiple reasons as to why Evans never got that run. Like every other "promising" black talent. Meanwhile, mediocre Caucasians will get the push and a chance to "show what they can do." Same company that justified giving Jack Swagger a run while having every excuse as to why Shelton Benjamin just wasn't feasible.
Evans will either not be over enough, or it won't be the "right time." History has proven that he's more likely to be Kofi's replacement than he is to be going over Breaker or any Samoans in a main event program.