Maxperson
Morkus from Orkus
Assuming it's not an actual playstyle, good odds says that if the DM described that player feeling the wall and finding a small cleverly hidden catch that triggers the secret door to open, the player wouldn't be like, "But I'm wearing gloves!" The players always seem to remember these things when something bad happens.That is why the players stepped in to say wait, feel? What about gloves?
The DM assumed the player has no gloves so he described the greasy feel when the character touched the chest.
The set up though is there is nothing one way or the other about what the character was wearing. The DM could be mistaken in their assumption about a PC detail.
It can be run different ways but in my opinion preferably this type of thing would be something for the player to decide, not something to be imposed by the DM's narration.
Wearing gloves while searching a chest for traps and/or attempting to pick the lock would impose disadvantage at the very least. The gloves would interfere to a great degree. It might not even be possible and result in an auto fail.