You can stuff it in there , but it doesn't really fit.
Makes the lid hard to close because of the budge.
Besides , that kind of answer is a cop out. Kinda like the trouser salesman telling me I'll grow into the pants he's trying to sell me that are too big.
You might as well have told us the saw could fit it in a Bosch LBoxx or a Dewalt tough box , or a milk crate.
Think your design team would have come up with a new insert with a new part number if the original insert was good enough?
Fetsool can , and needs to do better.