I actually believe this is helpful. Just in any democratic setting you want different types of players. You want the "burn the system down" people, because they provide harsh critiques and don't hold back. You want the "okay, but I have reservations" people, because they will push forward but also consider what they are doing (and will likely whistleblow if things get out of hand). You want the loyalists because they will push forward despite criticism. The trick is that you need a balance of these people (and the unmentioned players).
Specifically here I don't think we've even answered the question of "should we have contact tracing apps?" Because of this, I do think having that angry mob is helpful. They loyalists will push forward building it but the mob will help us decide if we even want that technology in our society. If we decide we do, we'll have it. If we decide we don't, well we'll know better how they would be designed.
__Being critical of those in power is a keystone to democracy.__