The problem is I don’t even know what happened or how the pla got around that silicon sleeve.
It’s kinda normal. If the hotend clogs there’s only two places for the plastic to go (or it can stop going into the hotend), the other one is up. And this is both more common and way better than up.
It doesn’t look like it, but the printer pushes the filament with a lot of force. It’s normal for it to just go into some completely unexpected direction that you can’t replicate by hand.
Anyway, if it’s working correctly and what bothers you is the extra plastic, just heat the printer until some 160 °C and pull it away.