The 27-year-old full-back was one of five French players signed by the Magpies in January - along with Mapou Yanga-Mbiwa, Yoan Gouffran, Massadio Haidara and Moussa Sissoko - to help them fight against relegation.
However, the club continued to struggle and only secured their Premier League survival in the penultimate round of fixtures, while there were also rumours of splits within the camp.
Debuchy told the Northern Echo: "There is nothing broken, there is nothing like that.
"Since January, I have never read the English press, so I do not know, but in France, they must surely talk. They will say, 'Newcastle signed many [French players] and there are no results'.
"But now I hope we have a good foundation for next season with a strong group in place."
Debuchy moved to St James' Park from Lille and admits it took some time for him to adjust to the physical demands of the Premier League but says he has no regrets over making the switch.
"Since January, I have discovered many things and I really have no regrets about coming to Newcastle," added the France international. "When we arrived, me and the other new signings knew that Newcastle were not in a good situation.
"Yo [team-mate Yohan Cabaye] explained to me that here, all the matches are tough. I've realised that quickly. There was the Europa League, which took a lot of energy, even though we are not going to hide behind that.
"Physically, it is a big step for the French between the two leagues. You have to be prepared. I felt it from my first matches. It is full on from the beginning to the end, so we knew it would be tough to the end. Well, it has been."