Denis got the bronze at the 2014 Olympics when it easily could have gone to Fernandez (some thought should have) so I dont think the judges were down on him. He probably is docked by judges for not being more consistent which led to his controversial loss at the 2013 Worlds amongst other things.
Really? Well let me refresh some memories:
https://www.youtube.com/watch?v=jP-mZzStD4U Javi sp 2014 Olympics -- a number of silly errors
https://www.youtube.com/watch?v=93pVezToE4c Javi fp 2014 Olympics -- great start but fizzled, tripling a planned quad and doubling at least 3 planned triples; minor issue of falling out slightly on another jump; added to the errors, Javi was still trying to figure out his stylistic niche with his coaching team and choreographer -- these programs were okay on Javi's journey forward, but the fp is a tepid copy of a Spy character theme originated by the very artistic Jeremy Abbott
Denis Ten is a superb artist on the ice, with a great deal more range and nuance than Javi artistically. Whoever can't see that, I feel sorry for you. The judges always loved Denis' aesthetic talents, but again he has had no powerful fed backing. Denis scrambled his way eloquently to the bronze medal in Sochi, and he earned it, whether or not he's your favorite skater! He's always had to struggle with physical problems too.
https://www.youtube.com/watch?v=8Ucv7j-Zzz4 D10 sp

despite the silly hand down on opening quad that caused his slip and fall, the rest was absolutely gorgeous and even the quad entry and air position was spectacular; the choreo and interpretation of the music, and the way he weaved elements seamlessly one into the other is head and shoulders above Javi's sp; again anyone who can't see that, too bad
https://www.youtube.com/watch?v=tUfBnXL8l2I D10 fp again, brilliant choreographically and presentation-wise, as well as technically better overall than what Javi managed -- the only issues for D10 was a slight hand down on a solo triple near the end and slowness on the second part of a combo spin near the end where he said he tired; after that though he mustered enough energy to end the program with enthusiasm and brio; notice that the judges did not go overboard on his marks either, so other guys who skated after Denis had chances to pass him and they didn't

A great effort in a less than stellar men's competition in Sochi.
Here's Denis looking back at his 2014 Olympics performances -- a quite fascinating and introspective analysis of his skating, and of his emotions during that time:
https://www.youtube.com/watch?v=A3WOdHzLr88
ETA: I'm not sure why you characterize Denis winning the silver medal at Worlds 2013 as 'a controversial loss.'

It was a spectacular victory. The controversy was over how the judges scored Patrick's messy fp. Denis' sp/fp bravura performances to
The Artist theme were memorable and innovative (thanks in part to valuable input by Stephane Lambiel, although choreographed by Lori Nichol):
https://www.youtube.com/watch?v=Jkz9jG7pwrk Eurosport D10 2013 sp
https://www.youtube.com/watch?v=uQnaSZVZWXs CBC D10 2013 sp
https://www.youtube.com/watch?v=iwdb-QbCsQs CBC D10 2013 fp par excellence (the doubled triples toward end, only one can be counted as a minor error, and so what; Denis earned this, and arguably he should have won, but whatever, his performances were a huge victory & a breakthrough for him)