Nah, not being able to deflect big blasts wouldn’t be good imo. I mean sure, it would add some nice unique features for that type, but i’d rather see a percentage of the ki blasts power needed in passive defense in order to deflect it.
For example, lasers would need a passive defense that’s 40-50% that of the laser’s attack damage in order to deflect them. Big blasts would need a passive defense that’s 180-200% it’s damage to swat ’em, etc.