Its been more than a week but still less than half, maybe they need to consider to do your suggestion because it may take more week(s) to get all 100 responses.
The survey hasn't received 50 responses yet as BCgame team has made the announcement in the games and rounds. To be frank, the games and rounds board doesn’t get enough attention from the Bitcointalk community as it used to get before. This is in exclusive giveaway for Bitcointalk forum members, and it won't be possible for anyone to give the survey answers properly without having the gambling experience in BCgame. The survey hasn't reached to the desired number of entries for these reasons. Therefore, it may really take more weeks to get the desired number of responses.
It's not easy to get 100 responses in a short time, I also think they need time to get them because maybe many people missed it or there aren't many active users of this forum who gamble on this site, I think OP needs to actively increase invitations to the community To be able to get results from the survey, there is at least a certain time limit so that they are interested in participating.
I think being part of this is also quite good because the free money just by filling out the survey in the form won't take long either, at least getting $10 in free money can be used to play games on the bc.games site if it hasn't reached 100 responses it means there is an opportunity for forum users others participated, maybe many people think that the form has reached 100 responses, at least the OP should close the form so that people know that it has reached 100 responses.