I disagree.
If you've kept everything clean, and the seals are in perfect condition, there is nothing wrong with re-installing them. Especially at such low mileage.
Lubricate the seals & pistons liberally with clean brake fluid when re-assembling & you should be fine. Check for leaks when you're finished bleeding.
Also, piston seals will not "blow out" on hard braking. They may leak, but won't fail catastrophically due to their design.
Please don't ask me to ride your bike, I value my life!