Actually, such a small number of conceded is certainly a good result but unfortunately, at the same time the reality is that Nice does not have a high number of goals. So ya, although Nice is in second place and 5 points different with PSG, but I think Nice is still not strong enough to be able to compete in the title race. But yes, at least with results like this it is possible for Nice to finish in the top 3 and will play in the Champions League next season, of course it will still be a good result for Nice this season.
The UCL can become more tougher only for mediocre clubs, because they're not doing well. Good results are the outcomes produced by elite clubs in the Ligue One. The UEFA Champions League competition clearly defines a club's ability to face its obstacles. The Ligue One remains occupied, with promising teams facing setbacks and powerful clubs rising to second place with figures of 10W, 5D, and 2L. The coach, Francesco Farioli, will keep a close eye on the league title competition with Luis Enrique who's a top rival for the title also.