Shield grabbed or at the least shielded, obviously Falcon will shield or roll more than he could grab in this case . Falcon for example can sh nair or upair out of shield when Marth shffl's a fair in, you can also roll or etc. If you watch all your videos on this page in particular basically alot of what he did was dash dance, you shffl'd and aerial (regardless of what character you were) and you would just l-cancel and not react or at least not react in time. It looked like you were essentially l-canceling for no reason, as you just stood there for a second like you would if you didn't l-cancel, especially if you didn't hit him with the aerial. Falcon's best option out of shield is to roll or jump (sh or fj your preference) for the most part since his wavedash isn't that good. But Marth, IC can easily do those, grab, and wavedash out of shield either away or forward.
I watched the videos were you owned him, and the evenly matched ones. You still do the same thing. You hardly ever play passive, even when he is approaching with an aerial. Sometimes he would be in the middle of a nair or a fair and you would just jump right into it or try to dash away and you would get hit lol. Sometimes it is better to just shield, then sh out of your shield with an aerial to counter. Definitely look into sh aerials out of shield, it is a very good tactic for Falcon since his standing grab range is so little. If you noticed 3GOD likes to fj fair to spaced falling fair on top of you. This is usually great for Falcon, since you can dash to shield sh jump out of shield to upair combo before he can get his second fair out. It's the same if he is sh fairing, you can dash to shield (as long as you don't let go of forward while your dashing/running you can shield immediately) slide into range to grab or sh aerial.
I feel bad because I'm commenting the Falcon more than the Marth heh. I just see huge openings coming from the Falcon since you don't really shield anything. So essentially there is a huge defensive block for both of you. He spams aerials regardless of where the Falcon is because the Falcon is either A) going to run or jump into it, or B) dash dance to grab, which doesn't work that often as long as he spaces it far enough away. And you don't take advantage of this, as you don't pressure him by staying inside of his sword range with the shield. As I'm sure you watch videos, watch how Darkrain and Isai often shield straight to aerials, and maybe you will understand where I'm coming from.
