No, I do not believe the said T95 player is spoiling the games. It is common to have at least 1 or 2 players do no damage or very low damage. I think the real problem is that people are upset he/she doesn't carry them. They should be upset with themselves for not being able to carry him.
If it were uncommon to see players do no damage and/or going afk, I would have a slightly different opinion.
he is spoiling the games by camping in a corner and doing nothing.