I’ve been pretty supportive of Walcott for the most part so I don’t think that applies to me obviously. Both have important roles (while Walcott has been immensely frustrating at times I understand his value and anybody arguing he brings literally nothing is being disingenuous or stupid). I’ve also defended Walcott plenty even as he missed those eleventy billion clear cut chances last season because I recognize that he is the only one capable of stretching the field reliably.
Bernard is certainly not useless either if he doesn’t volley a goal in every Saturday. Willian has also been blasted by many turds for not racking up ridiculous numbers but anyone that watches Chelsea will tell you he is World Class.
Willian is planets away from Bernard in terms of ability to move the ball upfield though. He's one of the best in the world at dribbling from deep into attack.
Bernard doesn't have to score to be valuable. But he does have to have some of that in his game because unlike Willian in the past he isn't getting the ball forward for guys like Hazard, Costa and Fabregas to take care of the rest. But again under Carlo, Bernard has finally begun to show that he can in fact get the job done at times when the attacking set up isn't a complete disaster.
Part of missing chances is getting on the end of chances. At some point they have to go in but as we've seen with Dom that often happens for most players. Injury permitting I think Walcott will score a few more the rest of the way and people will hopefully ease up on criticizing him weekly.