I never said jiggs dominated tournaments at every level, or that it was easy. It's simply that if the best two players in the world win consistently with jiggs, that means something. I hardly think jiggs is broken, but just as marth was considered top tier when Ken and Azen dominated, or when M2K switched to marth and joined in, it makes sense that jiggs should be quite high on this new tier list.
Marth hasn't gotten worse over the years, and the metagame hasn't developed in a particular way to make him a worse character. In fact, because it's easier for marth to **** spacies than the reverse, if anything, on lower levels of play the fact that falco and fox have only been increasing in usage means marth should get benefits. Despite this, marth has dropped significantly, and many notions drift toward him being in his own tier below sheik, but above falcon and peach. Why? Usage at a high level of play. In addition, as I said earlier, jiggs' matchups are quite good. I'll quote myself here:
"This in addition to the fact that her only two debatable disadvantaged matchups are against marth and fox, makes her a very strong candidate for a top tier placing."
Falco has debatable matchups vs fox, jiggs, marth, and peach.
Fox has debatable matchups vs falco and marth.
Marth has debatable matchups vs fox, falcon, and sheik.
Sheik has debatable matchups vs jiggs, fox, falco, and ICs.
Peach has debatable matchups vs fox, jiggs, marth, falcon, and jiggs.
I won't even go into falcon and ICs disadvantaged matchups.
Debatable taken to mean, that it's debatably a disadvantaged matchup, as I said earlier.
That said:
Jiggs has debatable matchups vs fox, marth... hmm... that's it? I say this, remembering the fact that as the metagame has progressed, her matchups with fox and marth have both been getting closer and closer. Fox and marth used to be hard counters for her... now... hardly.
I'm not saying jiggs is a step above top tier characters, but I don't think anyone can ignore consistent top 2 placings at international/national tournaments, along with matchups consistently in her favor (the only character rivaling her matchups is really fox).
I end by saying that you can look at Apex results for usage if you want. Fox EASILY has the majority of uses, and is obviously top tier. He's followed by falco in that respect. After fox and falco, most characters actually have fairly equal representation. I'd be interested in seeing some weight placings vs representation as well. I say this with the fact that we *more or less* know mango would have won going jiggs/falco, had he not been hungover. I'm not johning for him (Im honestly glad hbox won), but you have to take that into consideration.