Getting tagged by a classic from 30 meters away and being stopped almost completely is a nightmare. You can't peek for info, if there's a pixel in the smoke or they just happen to be spraying you're stuck in dead water.

I think tagging should slow you much less the less damage you do. A stray classic shot isn't the same as a phantom shot to the chest, tagging allows cheaper worse guns to get free damage and feels incredibly frustrating to lose to.