This is intended. Chutes were supposed to be cheap, gravity feed chutes. They were not supposed to be able to load onto belts, or have any advanced functions like machine full awareness, filters, or split lanes. However, that train left the station.
When this mod loads, it will detect if there are chutes outputting and enable the runtime setting that allows chutes to load onto a belt - as they were before.
By default the startup setting for Chutes mode will be "Basic". No filters, no split lanes, and no awareness of insert limits. They will insert as much as the machine will take. You can change the startup setting to "Filtered" to get those capabilities back on all existing chutes. Your play style, your choice.