There's really two problems that have lead to this.
1. They just added Peewee BB, and as a new division clubs aren't yet comfortable with what it means, and whether or not they should play in that division.
Obviously at each Tier there are impediments for the clubs and parents involved, making those fundamental decisions. At the "travel" tier (Anything A or under) there are always going to be teams that could move one way or another, but for clubs that are only able to field one team, or possibly one team and a second "new to the sport" team, there is inevitably a need to find the balance between serving the best players on the roster via more challenging competition, or the less skilled players, who will be overmatched. When people complain about teams, they are almost always complaining about teams where there are substantial extremes from the median sklll level of the team. Occasionally and historically there have been clubs that seem to regularly field teams that are entirely in the wrong division (not talking about the Riptide A team from last season!!!!) but that's a whole different issue, and not the norm.
2. Peewee is the end of the line for the "Play up" era, that started with the implementation of Mite ADM cross ice.
What has happened since that time, is that it has become the norm for individual kids as well as entire teams to play up a division. This starts with disgruntled Mite families who have kids that have essentially outgrown cross ice, and then continues year after year. For some reason, once on this habitrail wheel, people are convinced that their kids are not going to make the NHL unless they are playing at the next available age group, whether or not that is appropriate or even logical. Again this year we see numerous '06's playing Peewee A when they could have played Squirt A, and believing that this will make their kids better hockey players in the long run, even though there is absolutely no data to support this that doesn't involve anecdotal Wayne Gretzky or Sidney Crosby stories. These generational players who are complete outliers, seem to drive decision making, while the story of Auston Matthews who learned the game playing 3v3 on small rinks is ignored. Meanwhile, all those Canadian and "traditional US hockey market" NHL players all grew up playing against kids in their own age group.
Scaha, which at one time had clear rules forbidding this practice, has essentially rubber stamped it the last few years. It's bad enough that so many kids are unnecessarily playing up a division against kids 2-3 years older, but when you consider the thought process behind this idea, it becomes clear that the practice doesn't have the same cache when bragging to others about how your kid is so advanced they HAVE to play in a higher age group, if you don't have at least one A to tack onto their league. I know that many parents just follow the team and the coach along on this journey, but that doesn't make it any more reasonable.
So here we arrive at a Scaha Peewee A division with 24 teams as we speak, 16 games, and eight playoff spots to be won. Teams will play completely unfair schedules and find their season is essentially over by christmas. Other lesser teams will make it into the playoffs purely due to the luck of the draw. The top 4-6 teams may never play each other unless they meet up in tournament play.
Teams at the bottom of the A division who will be beaten by 98% of the division, and absolutely crushed by the top 70%, would be far better off in BB, but that would mean losing that all important 'A'. I'm sure in a few seasons things will level out, but apparently this season, the Peewee A division is going to be the crucible where all the issues of the last 5 years are made manifest.
