So instead of making our trading stretched thin on other pairs, just focus on that would be left. I would guess that it would actually make sense to do something like that in the long run.
It seems to me that the most important thing is that the FUN token should always have sufficient liquidity, regardless of the number of trading pairs. In addition, I agree with you that everything will be fine with the FUN token even if Binance has only one trading pair (FUN/USDT). By the way, it's also worth noting that Binance already delisted the trading pair FUN/BTC at the end of last year, but as we can see, nothing critical happened with the FUN token after that.
as long as there is interest in trading this token, it doesn't matter if there is only one trading pair left. and you can basically see the trading volume if it is still gaining attention to traders or not. being listed in binance is already a strategic move and a good boost to the token. if the team behind FUN token will conduct regular maybe trading contest or other marketing programs, people will have an active engagement with this token.