Bolasie and Iwobi are entirely different.
I feel those comparing the two have seen winger and London club in the same sentence.
I'll try and explain the comparison.
Iwobi has vastly superior technique. He doesn't run with his head down at top pace in a straight line with the ball knocked 20 yards away.
However, the comparison is in how they use the ball. It's often brainless. That vid posted before - for every time he knocks it through someones legs, there's ten other times he hasn't give the simple pass and knocked it against a leg instead and lost possession. For every trick he does to get by someone, you'll more often than not see an awful cross or running it out of play. He's a turnover machine with too little end product.
His pass stats don't surprise me - so many into the box, so many Hollywood passes, resulting in so many interceptions as the pass was never on.
That's the comparison with Bolasie - how he'd often smash aimless crosses in the box or run the ball out of play or try a meg and fall over. They also both have little instinct as to when to attack the box off the ball, which to be fair is also a criticism of the likes of Bernard.
The modern game uses technical wide players with brains, who hold possession and know when to push. The comparison between Iwobi and Bolasie isn't 'lazy' - it's that they're both footballers capable of the sublime, the highlight reel 'Match Of The Day' moments, but for the majority of any given game they're a waste of space who break down every decent attack.
Unlike Bolasie, Iwobi has time to come good and has a good technical base from which to do so. But the concerns about him are very valid.