A lot of people want a boost reset. Personally I think the strongest argument is that it would bring more variety to the game. The meta is very stale now and hardly anything changes until Ludia does the next rebalance in a few months. There are other reasons as well.
Put a significant pricetag on it, like 1000 hard cash or 50 000 coins. This makes it so you can’t just respec for every tournament and raid battle, but its still low enough so that you can invest in a reset every now and then to try out new creatures and strategies.I truly belive that adding more options and variety to your team(s) will make the game more interesting for everyone.