To a certain degree, yes. I see a whole lot of posting in this thread from people who did not get their voting reqs. I have to encourage people to actually complete reqs on multiple occasions because they say they are either too lazy to finish them or they tried one account and it didn’t work out. If someone really isn’t able to complete voting reqs then it is what it is. But I’d expect at the very least that they try a couple times because they have two whole weeks. Anyone who didn’t even attempt reqs because they assumed a certain outcome clearly didn’t learn from the first Tera suspect.
To be fair I am one of the lame pro ban people who didn't get reqs, but I also just... didn't wanna play the tier because of things like Tera. And did also think it was a sure outcome. I think part of this is also due to how people talked about the suspect test, you must forgive people for believing the very overwhelming pro-ban sentiment from the playerbase in many threads, or the Discord, etc.
This whole suspect reminds me of BDSP OU before it was abandoned. The council and basically everyone thought a Latios ban was assured, so it was not a quickban. This ended up ruining the tier for months as the council had no real plan for if Latios was not banned, it was seen as the obvious conclusion.
What ended up happening was as the newness of the tier faded, and the tier was still not settled, and SWSH OU and Gen 8 NatDex kept getting better, BDSP OU ended up in failure.
In both cases the ladder was not of a high quality, and a very similar set of events occurred. I think part of this is that a lot of this thread must understand,
National Dex as an idea appeals to a less competitive audience.
Frankly, Game Freak absolutely had a point when it came to the fact that it is easier to balance with less Pokemon and less major mechanics. And National Dex will always have a very casual audience because it is geared towards people, like one of my friends, who are more interested in competitive Pokemon for using their favorites, or weird strategies, or god forbid "I can't use a full Ash Ketchum team in OU, so National Dex it is."
BDSP had a very casual audience because it was seen as an alternative to SWSH's balance-heavy metagame, which a lot of low-level players were tired of.
So, what is to be done, in my opinion?
Nothing with Tera itself. This is the second suspect test, it's time to take that loss. Instead, focus on doing something that I do not think is in line with what makes National Dex an appealing tier to a more casual audience, but what clearly has to be done: Ban Pokemon. A lot of Pokemon have avoided action with "Well it's mostly Tera's fault", so it is time to reap what the playerbase has sowed.
About the investigation type thing; any, and I mean any reason to cast your vote is valid. This isn't actual politics or the real world, nobody gets hurt if National Dex OU is weaker as a tier, we shouldn't do what is essentially Smogon forensics unless we actually believe alting has occurred for multiple votes. Younger accounts, less experienced players, not of the main "active" community (or you know, a language barrier) doesn't make someone suddenly not have reqs. And if you have reqs, vote as you please for, hopefully a good reason, but any possible.