I kinda noticed that people will just easily call a project scam without even researching about the project, their judgement is solely based on the price and does not consider that most altcoins are affected by the bear market. If they can't change their mentality, this would affect the reputation of the project, this is like destroying a project's reputation in bad times, instead of helping them.
I concur with you, it is not right to say such things about a project during bear market as it does not help the project in anyway but funny enough those who don't understand the crypto space will still be too quick to call the entire space scam, have seen such on twitter. Bear market deals with all coins with no exemption and the best the team can do is to continue working on their project while the community members continue supporting the best way they can.
Also, maybe, the reason why most people call a project scam during bear market is that, the team aren't working neither are they updating the community on what they have achieved so far, which is not good. In the same way, there are projects which can exit scam during bear market, some can even shut down while blaming bear market for it.
In all ramifications, even though some projects can shut down etc, it still doesn't mean all are scam and hence every good project needs a supportive community at all times.