Halsey made the allegations against six officials after publishing a book, Added Time, about his 15 years as a top-flight referee.
Scudamore said the select group of elite referees were upset by the accusations from Halsey.
He said: "I think it's disappointing when the game has given somebody so many years of matches and such enjoyment and suddenly he chooses to go out and basically do the dirty on his colleagues.
"I just find that poor form, especially from someone you have trusted. I personally expect better behaviour from those we have appointed to be match officials.
"If you are charging people with being referees I just think I want more decent people than that and I just think it's not good for his colleagues.
"My understanding from the group is they are not happy and neither would you be - these are perfectly competent good people who are being openly criticised and it's unnecessary."
Scudamore also defended the top-flight referees from claims in Sir Alex Ferguson's new autobiography that the match officials needed to be more professional.
He added: "The Premier League is at the leading edge of referees' development. Are they perfect? No. Do they make mistakes? Yes. Are those mistakes decreasing in frequency? Yes.
"But would we swap them for any other group? No."
Halsey has claimed the Premier League are out to "blacken his name" after his criticism of Professional Game Match Officials Ltd (PGMOL) chief Mike Riley.
He told International Business Times: "I know that members of the establishment have spoken to the press and thrown little hand grenades in and taken them out to dinner and blackened my name.
"If people read it thoroughly, it's me saying that the weaker referees need guidance and managing properly and we don't want to lose them like we lost Stuart Atwell, Keith Stroud and Andy D'Urso," he explained.
"The people in charge of the PGMOL at the moment they haven't got a clue how to speak to men."