I was just about to reply - you don’t need the MIDI filter. But I tend to use a completely different approach in this situation. I would have a MIDI In Block preset which blocks everything except Sustain and then that block represents my sustain pedal.
Then I always block the sustain message in other MIDI In Blocks and so when I want to use sustain, I just throw in that extra block and connect it to the plugin that should receive sustain messages.