It only takes two seconds to loosen that rear hose clamp, do that and pull the hose/seal assembly off of the shaft.
The hose clamps onto a sleeve that is formed into the hull and sticks out inside for the hose to attach to, this sleeve can crack. It's worth doing a quick inspection of the sleeve, give it a wiggle. It should be solid. It it is broken do not panic, they make a kit to fix this scenario.
The bearing carrier/seal assembly is meant to move around. Driveshafts can get a little bend, very little, and still function. The motor has a good bit of wiggle as well. Both use that flex in the seal. The ends of the drive shaft have a slight ball shape to allow for any wiggle, it is not locked in solid straight at either end.
Just for your knowledge. That is not a carbon seal. It is the "original" style seal (actually not even the original). In my opinion the better of the two.