He's on a hot streak, I mean he has been playing in the top-6 the previous 2 years and struggled just as much as he did on the 3rd line behind 2 strong lines ones this year...if anything it's come to realization that he can't be the puck driver on his line anymore Point is outshining everybody outside of Kucherov on this team for how much he does for his line mates. Johnson didn't look good playing with Namestnikov/Stamkos despite putting up some points either, he needs an elite puck distributor on this line.
Gourde gets more credit being a threat on his own line, maintaining production away from Point and just a doing a million little things that disrupt the flow of the game for the opponent.
I think they're different player types. Gourde/Johnson, I mean. Johnson is a north-south shooter, so you want him with more creative players.
I feel like we're more balanced now because Gourde and Palat are fairly similar players, or at least they do similar jobs, and I think we're better off having that spread throughout the lineup. Johnson, like you said, needs a creative player with him (Point), and preferably a guy to win puck battles (Palat), so he's very much in a position to succeed. But the fact that he's very much succeeding is a credit to him.