The need for independent part/event behavior isn’t a common use for lanes in my particular workflow, so the current way of working would rarely affect me. However, after experimenting a bit, I found a possible workaround (for the time being) while the debate continues whether to incorporate a choice into a new update/release,
For audio or MIDI: locking the parts/events on the lanes you don’t want to cut, allows them to be unaffected by the snip tool and/or the select tool modifier.
For audio only: “events to part” then working inside the part editor with the snip tool (not the select tool modifier) only clips the intended event.
I know this may slow the process considerably, but at least we can keep working in the meantime?