What else would Trouba see publicly? He's leaving his options open and doesn't want embarrass the Jets or himself if he happens to remain a Jets for just two years. He can always say, "We negotiated but couldn't come to an agreement." in the future.
Just saying don't ever believe what a player, coach and executive says publicly. It might be meaningless.
And of course most what the writers and talking heads say is just their opinion and not really fact based. They like to convey they are the smartest guys in the room so their rating or clicks are higher, that's all.