What would happen if a 1300 rated player in daily chess played only 2000's? (0 rating points lost)
at 1300, he would probably get better by osmosis. seeing good moves often being played improves your chess intuition. Strong players can often play on autopilot agaisnt weak players mainly because of "muscle memory" with good principled moves.
seeing dozens of times, what good chess looks like will definitely improve your chess. although by how much exactly, i cant say.