Model leaves room for various edits specially in the old gen department.I will respond to your post regarding ORAS in this thread.
1. I disagree with the surveys serving exclusively as tiebreakers. I agree with the premise that there is a lack of community discussion and that "gather community sentiment when no other discussions are taking place," but it doesn't follow that they need to be relegated to a supplementary role or a call to action. In this case, the survey helped clarify where people stood on the current metagame and give council more information to work with when it came to suspected certain mons. In the absence of substantial metagame discussion, it makes sense to use these tools to get such a picture.
Additionally, this idea that surveys should be "binding"– "Surveys should not be conducted if there is no intention of respecting the outcome"–does not make sense give that the spectrum is not yes/no suspect. Clearly if a survey is unanimous that we should suspect, then I agree that it would be problematic if we didn't. However, if the results are more mixed or less clear (say a 4 and not a 5), it seems perfectly reasonable that council has discretion over the final decision with the survey in mind.
2. I think that the survey results regarding Mew vs. the council outcome is different in regards to the tier from SV. The most recent SV survey had 47 responders, with 23 considered "qualified." In contrast, the ORAS survey had 8 people, only 4 of which were qualified. Most, if not all, of those qualified voters were also on council. This creates the opposite worry which is that the survey may be over-representing those with the power to suspect. With this lack of diversity of opinions, it makes sense to wait until a tour which will provide more qualified voters (and metagame development) to get a better feel for whether or not we should take action. Bans in old gens are extremely sticky, and there is a general philosophy of caution when approaching them due to the smaller playerbase and activity.
3. I agree that there should be more discussion, but with the limited playerbase of old gens this is very difficult. This is especially true when there was just a ban that significantly altered the metagame, so that players who might otherwise have experience with the tier would be considered less qualified if they have not played a tour recently. I think there is a need to distinguish between surveys as the only tool to gauge community feedback and a useful one. Being able to get a quantitative picture of sentiment is useful, and I don't think we should cut ourselves off of that without a very good reason. The model of "Discuss in metagame discussion > more than one option AND ready for tiering action > survey > if favorable results suspect" is fundamentally flawed because it assumes that we know before a survey whether or not something is ready for tiering action. The whole point of a survey is to help clarify if that is the case.
However I do think 4/5 is very significant and has nearly unanimousity from the community side that it's actually a dangerous precedent to ignore. There could be an argument for 3 but 4? This is another question, when is the community support enough to actually force suspect.
Also @ the last part, you can initiate discussion as council member so you're aware what the people think deserve tiering action