Mistakes worse than blunders?

Here, I present a game where I won quickly. I did a check on the chess.com engine because I wanted to see if pushing my centre pawns so much was sound, but came across a quirk in the analysis.

After playing 10. e5, I quickly realised that I had missed Ng4 meaning I should have been dropping a piece, but my opponent missed that and Nh7 was considered a blunder. That was understandable. However on move 14, black plays Qxd5 which allows a discovery attack to win the queen, and yet the engine only considers this a mistake. What gives?

Move 10 goes from -0.44 to 2.62 or a difference of 3.06 (and classed as a blunder), Move 14 goes from 4.02 to 14.47 or a difference of 10.45 and is only classed as a mistake.