I would agree, but I didn't get any responses to my previous post.
It isn't a very active thread in terms of feedback.
You didn't pressure Shulk a lot, sure you threw out a bunch of Nairs, but it felt like you weren't camping him at all, so I'd say you're being too aggressive against a swordsman who can out range you.
You're obviously still thinking JabJab is useful in neutral, and while it is possible to sometimes get the JabJab turn around Utilt, it's rarely worth it.
Something to practice is SH Uair's, if you do it fast enough it'll auto cancel just like Bair - which you didn't use a whole lot of either, cause something like Bair to a landing Dsmash is possible if you can pressure opponents, it's also a good roll trap in my experience. Another thing is, if you end up double jabbing on his shield, it's not a bad idea for Fox to do a Pivot Fsmash, as the distance gained in doing so should be far enough to avoid a shield grab, and in that case you're rolling in with an Fsmash.
Also do Uthrow for a mix up in case they are always DI'ing away from you, that way you can put them in a position where you can read their air dodge with a Uair, or if they decide to jump away, possibly trap them when they are out of jumps.
Your neutral was basically lacking, and you didn't execute the small things, Shulk is a... iffy MU in my book, not the best Shulk you fought though, but be wary of the counter, as it's duration is long, and if you see him user Buster, it's better to play defensively, cause it's directly telling you he wants to rack up percentage, so best to steer clear of that and maybe bait him with the blaster.
EDIT: SOME ****ING LARRY !
Bet he'd 2 stock him all games if he could still JabJab Dsmash