This argument is the absolute epitome of unnecessary player insecurity. Unfortunately, it's never going to go away, because we're always going to have insecure players who look for something else to blame their defeats on. I've said a lot about the issue in the past, but I'm not going to bother now. Everyone did a great job of summing up the situation for you so far.
I'll stress, however, that when we start taking self-imposed bans on certain aspects of the game so far as to restrict which areas of your controller you are and are not allowed to touch, it's pretty clear we've gone too far. Though lacking any real validity, arguments that call advanced techniques and physics exploits "unfair" at least stem from some vaguely defensible, though equally stubborn and invalid, standpoint. This comes from no logical source. Forbidding an area of the controller? It doesn't get any more "intended feature" than basic controller use. You really need to reconsider some things if you have a genuine problem with such a benign, absurd thing.
I'll add, also, as clarification to an earlier question, that it is, indeed, not possible to trip using the C-Stick on the ground to Smash, as doing so always ensures frame-perfect execution. A normal smash attack has a several frame window in which to input the two required inputs, direction and A. If the A input comes late, in the frames before the game has realized what you intended, your Control Stick movement is just as susceptible to a trip as any dash, even though the dash is cancelled if an A input is placed within the valid range. The C-Stick will always give both inputs on the same frame, and as such it is not possible to trip with the C-Stick. This is just one of a dozen glaringly obvious benefits to C-Stick use. You are severely limiting yourself to ignore options available to you.
@YoungMoney702, I hate to be the bearer of bad news, but if you've never given pause to consider the options that the C-Stick has to offer, I'm afraid you are, indeed, a relatively inexperienced player. There is no inherent evil in being a "newbie," in being inexperienced, everyone started as such. The stubborn unwillingness to improve, however, is a separate ailment. It's a mindset normally tagged with the word "scrub." Being a scrub means that you impose limits on yourself for no reason other than ill-informed and closed-minded opinions. It's an unwillingness to really play the game, an unwillingness to accept your faults and losses for what they are and work to improve.
There is nothing wrong with being a "newbie," but there are lot of things inherently wrong with being a "scrub," the same things wrong with being pointlessly stubborn in any aspect of life. If you've never given thought to what the C-Stick can do, you are indeed a "newbie," and you should feel no shame in that; yo should feel only a desire to learn and grow and improve. If, now that you've been made aware of just some of the C-Stick's benefits, you refuse to acknowledge them and refuse to consider the options they present you, still, despite being aware of those possibilities, then you will be a "scrub," and you, friend, will have erred.
Don't limit yourself. Play every part of the game, not just one part. Play the game to its fullest. I hope for community sanity that you choose the right path.