Lucas will always have his detractors.
It's a question of stubbornness on the part of those who gloried in the fact that he was having a rough time of it. The "I made my mind up and that's the end of it" brigade who'd rather a Liverpool player did badly so their own opinions could be respected, rather than actually seeing one of their own do the business, and the team get better in the process.
I have a few mates like that. They decided he was shite at the beginning (when anyone could see during that Derby that he had bags of potential), mocked those who rated him and couldn't wait until he was sold to some Championship team. Now, they're like all the other detractors. Nervously biting their nails watching him, willing him, to fail - and cursing silently at every pinpoint pass, every well-timed tackle and every intelligent run. If there's one mistake, he's shite again.
They're the same people who see the likes of Gerrard having the season he's having, refuse to criticise him for his shocking play and then, when he makes an aggressive sliding tackle or something, pipe up with the "he's the best player on our team by miles, get him into centre mid" bollocks propagated by sky.
Lucas doesn't score bags of goals and he isn't a lunatic in the Mascherano mould. Maybe that's why he's despised by some clowns. But he's the future, and it's a bright one. Keep it going Lucas.