Yeah, but the brake fluid still needs to be regularly changed. The fluid is hygroscopic and if the fluid absorbs too much moisture from the air, the brake system can fail under hard braking. Basically hard braking heats up the brake fluid and the water inside can boil and turn to steam which is compressible and your brake pedal goes to the floor without actually making the brake calipers close. Regenerative braking should still work but in an emergency you probably want more.