I feel like the truth in terms of what Pig is talking about at the start is this: we should know these things already from the past
1) Certain types of characters (especially ones with unorthodox tools or playstyles) tend to look really good before everyone learns the ins and outs of matchups. For example, there were times in MK9 when everyone was getting blown up by characters when they were caught off-guard or didn't know the MU.
Jax, Johnny Cage, and Kung Lao and even Smoke got away with murder in Top 8 until everyone finally learned the matchups (it took months). The first time a good Sektor showed up, everyone got blown up until they learned the matchup. Likewise with Mileena etc.
So when someone shows up and does really well for the first time at a tournament with certain characters, you have to wait and see what happens when *everyone* gets scared, grinds the hell of that matchup, and shows up to the next tournament knowing every single bit of frame data, every gap, every punish and every weakness (that's when you truly find out how good a character is).
This put Raiden, Ermac, Rain and all kinds of other characters to death in MK9.
2) Certain characters take a really long time for their metagame to evolve and reveal how big of a threat they are. Kenshi was like this in MK9. People were cashing him out with ease until Pig of the Hut got ahold of him. Now there are pocket Kenshi's everywhere. Cyrax was "a mid tier character at best" until people broke him far enough. Skarlet was just starting to gain steam as of FR this year.
So it's too early to state that a certain character is an overrated threat -- you have to wait and see what happens once real top players really take characters to full potential.
So after the patch, people should take a deep breath and wait for the long-term results rather than making enormous 'statements of proof' after every single tournament
Time is one of the biggest teachers of truth.