I think Newcastle were just unlucky to get points in their last two match where those two defeats came just as the match was almost over. Chelsea beat them 1-0 in the 90th minute, while Everton beat them in the 90+9 minute. It hurts because the match is almost over.
But overall I think Newcastle did their best to win a match where they also managed to dominate possession, try goals and e.t.c. Newcastle were just unlucky not to score, while Everton were very lucky with a late goal after one of their players was shown a red card in the 80th minute. It is true that Newcastle's second straight loss so far was very unexpected as they came close to sealing a point at the end of the match.
Newcastle has not shown signs of a revival as a new big club in the Premier League competition after being acquired by the Prince of Saudi Arabia. Newcastle's financial strength has not been able to improve their performance on the field, until week 29 Newcastle are still ranked 14th with 31 points.
I think Newcastle's real performance will be seen in the next season, the generous funds that Newcastle have are able to bring top players to st James' Park.
Newcastle must immediately improve after being defeated by Everton with 10 players, although Newcastle's statistics are far superior to Everton's, the final result will be decisive.
Newcastle had improved and revived in their performance since it was taken over by the new owners, recall they are in relegation zone few months ago before January transfer window, they bought two or three quality players, thereafter won many matches consecutively and consequently escaped or moved out of relegation zone, thus their still room for improvement, they are quite unlucky in their last two matches they deserve a draw unfortunately lost those matches narrowly.
Next season we will watch a new rejuvenated Newcastle side boosted with quality new signings and challenging the big teams.