Nope.
(a) my car’s a diesel. No throttle plate, so not much engine braking
(b) if you rev-match properly before letting the clutch back in, and ONLY THEN gradually let off the gas, the slowing will be very gradual. Not to mention that downshifting and letting the clutch in with the engine idling chews up clutch plates.
If you’re talking about doing the same in an automatic, I’d actually agree, but unless it’s an electric car, any car I own will have the correct # of pedals.