Matchup charts ARE more useful... but they generally correlate to the tier lists themselves, and cannot by nature incorporate factors such as tournament representation. And you're somewhat correct that tiers indicate "how hard you have to try," but you're pretty much sh*t out of luck if you're against someone who put in the same amount of effort into a higher tier character.
No and No.
First, the line makes no sense. How, by nature, do they ignore factors like tournement representation. A tier list is a ranking of all characters and match ups are how two characters fair with each other. Tournement representation can affect both of these factors. Secondly, tournament representation is going to be reflected by the tier list and match-ups. If a character is never played, they will have a weak metagame, and vis-versa. Also, if the representation of the characters and their placement in the tier list don't correlate, there could be a problem with the tier list (this points out that a character is being played a lot, meaning the character could be good, especially this late in the game. The tier list can misrepresent that character). Also, tournament ranking are what really should make up a tier list as you know which characters are actually winning, meaning those characters are likely better. So these factors play a big role in the game. They are relevant to discussion.
Also, "someone who put in the same amount of effort into a higher tier character," means nothing and shows you don't understand tiers. Tiers are basically if both players are of equal skill, the higher tier character will win. This is effected by a lot of things
- The players must first be of equal skill
- assuming the match-up does not deviate from tier placement (Sagat in SF4 has a 50:50 with Akuma, but he is much lower then characters with 60:40 in Sagat's favor)
- That neither player knows the match-ups better then another
- That varying play styles don't throw off the match.
- And other external factor (disqualification, mistakes)
Effort has nothing to do with it, for the most part. I could put a weak player with a strong player, and the strong player not care and the weak player giving his all. The weak player can still lose just because his opponent is so much better then him. The factor here is skill, not effort. Effort plays a role though. If one player isn't putting enough in, he can still lose, but skill is going to be the biggest determinate next to things like match-up knowledge.
Also, the tier list isn't 100%. It can be wrong and can change.