I agree that the board wipes do indeed give Bakura a shot. The issue is, unlike the raw free advantage of the Arc V cast, or the easy to summon beaters that the Zexal crew can constantly pump out, the 5Ds cast specialize in graveyard effects, things like dandylion, level eater, trust guardian, with plenty of traps to special summon from grave, in particular with cards like black rose that blow up the entire field. The 5Ds duelists, in particular the signers, are very used to having their entire fields blown away, and having to rely on traps or effects in the graveyard. In particular when a mecklord can make any synchro duelist go -2 bare minimum, just by existing on the field.
In addition, Bakura just wouldn't be able to keep up. His deck, even with all the draw power, honestly just doesn't have the power of Akiza's deck. Akiza can easily pump out synchros turn one, and something like Queen of Thorns would inflict burn damage that would come back to destroy Bakura in the end, as Akiza can remake her fields with relative ease. Zexal and 5Ds duelists, in particular 5Ds, are frequently forced to remake their fields from practically nothing, being forced to rely on traps or effects in the grave, as they don't have the convenience of pendulum cards, or one card xyz plays that result in less advantage lost. Two hits of 2400 is game in the anime, and Bakura's primary way of remaking his field is through monster reborn, which isn't a guaranteed draw, assuming he isn't killed in a single turn.
Overall, in general, the later strategies are just more equipped to duel. Even as seen in modern Yu-Gi-Oh, one card power plays are not enough to get over a snowball of advantage that starts as early as turn one. And it would be easy to get a hand full of one card power plays when one plays so many of them.