He was better than some of the starters we've got now - and was our leading goalscorer in his first season, so how do you reach that conclusion anyway. When he played regularly, he delivered, but he's now judged on inconsistency which was down to playing inconsistently. He was, and is, a goalscorer, as he proved with B.L.
"He was better than some of the starters we've got now". The only starter we have in the striker position is Ibrahimovic, he's played 90" in 26 of our 29 league games. Hernandez is not better than Ibrahimovic. As for our other forwards, their positions have nothing to do with Hernandez. The fact that Martial or Mkhi have underperformed doesn't mean Hernandez would step in their positions as LW or #10/RW respectively. He can't play in those areas, no way.
He had 2 good seasons in 6 years us. And at that time the competition within EPL was not as high as it is now and we were managed by SAF. His 13/14 season (4 goals in 24 league apps) was disastrous, then he got little game time under LVG and he left to play for Real where he also failed to deliver (23apps, 7 goals) . So he eventually got shipped out to Bundesliga where he found his level at Leverkusen. Even there after a good first season he's now struggling in his 2nd (12goals in 32apps in all comps).
He was a likeable character which induces romantic views form the fans, but he's failed to consistently deliver at the top level here and at RM. Most coaches viewed him as a squad option. He's not the answer if we want to climb up the league table. He's not Costa, Sanchez, Aguero, Ibra level. Plus why do people think he'd be happy to be a squad player?