The problem is that the software is limited to two passes when cutting a dado. This requires a tool greater than half the width to just under the full width of the dado. This is not a practical requirement for a shop that only occasionally cuts wide dados. A much better solution would be to make more than two passes when cutting the dado. This would have to be dealt with in the software.
I actually like that it requires 2-pass cuting for dados, it saves time. However, if you need to do a wider dado and you do not have tooling do it as a pocket so you can pick and choose what bit you want to use!!!