FYI, there is no "All Level Worlds". There is one Worlds. There are also All-Level Championships. Those are not "world championships" and the event producers are not allowed to describe or market them that way. Winning one of those competitions is commendable and something that those teams should certainly be proud of. However, referring to those teams as "World Champions" is incorrect.
Senior Open is a great division with some awesome teams. Many of those teams are probably stronger than some of the teams in the "senior" divisions. However, from the start, the "senior open" division was designed specifically as a bridge between L4 and L5. It was never intended to be even a possibility as a Worlds division.