Welcome to the world of the media. No matter the media - if you create content, there will be critics. This isn't a bad thing. No one is (as far as I can see) being nasty about it, just observing and commenting.
To get constructive criticism from a variety of view-points will help the team put together better content. If all feedback was perpetually positive - they would keep doing the things we dislike or perhaps isn't working, and never explore new avenues. After all - we are the viewer, and I'm fairly certain they make content for us to consume. I expect they want to know when something isn't working. Of course - that's not to imply that everyone agrees with the view points of those that don't enjoy Steve's food reviews - but we shouldn't want to censor those offering feedback.