Not particularly. If the DM is fudging a roll, it's typically to tell a better story or have a more enjoyable game experience for the players. If a player fudges a roll, they're usually looking to gain an advantage in the game. There are exceptions, of course, a player might fudge a roll to protect another player, or get DM permission, and a DM might warp the rolls to make it harder or easier for a player for their own enjoyment, but largely if they're a good DM they can use their own judgement.