Silver might’ve jumped the gun in trying to find evidence, but acting like there’s none at all is a piece of bad writing that looks horrible on all characters.
Whisper witnessing the action is already a piece of evidence in of itself. Whisper is a trusted, world renowned hero who has put her life on the line numerous times over and knows Mimic perfectly, to disregard anything she says is downright idiotic.
Whisper’s mask is capable of recording things, there’s no reason they couldn’t have had what she witnessed recorded.
Silver has never met Mimic yet was able to point for point perfectly describe what Mimic does when he loses his disguise, something Tangle and Whisper know all too well because he did it multiple times in their miniseries.
Even if you want to ignore the lack of evidence, treating the possibility as non serious is utterly idiotic, and shows how much of a terrible leader Lanolin is being. Part of leadership is being able to remove emotions from the situation in order to access situations without bias. While Silver and Whisper were in the wrong for trying to spook him, it also doesn’t erase the fact Lanolin should be capable of seeing the clear and present danger and wish to investigate it. If ‘Duo’ has nothing to hide, he would aid.
Lanolin also opts to cut Whisper off when she tries to inform Lanolin that she knows Mimic’s tells - one of which would be that Mimic is downright incapable of altering his hands. If he’s innocent, he should have little issue removing the gloves to prove he’s innocent and let apologies and such come after.
A proper leader not only would’ve taken the necessary steps to ensure the matter is investigated properly due to the serious allegation, but also just do the most obvious thing of asking Duo to show his hands which would confirm things one way or another.
There’s logical or intelligent about Lanolin’s actions. Not even close. Every single hero in this issue is written as stupidly and incompetently as possible in order to justify stretching it out and resetting the status quo back to before Mimic outted himself via stupidity. Lanolin ignoring her friends’ opinions, belittling Silver’s experiences as if he’s a irresponsible child, even though he’s lived in worse, more deadly circumstances for longer, and outright putting every single person in the Restoration in danger because she wouldn’t even choose to humour Silver and Whisper, and at least do the bare minimum checks to ensure they were wrong just frankly makes her the worst in a bunch of badly written, incompetent characters this issue.
The clear issue is Silver, Whisper, and Tangle have all had multiple issues where they’re written correctly and in character. Meanwhile, Lanolin is a background chapter promoted to main character, yet hasn’t displayed any particularly good traits that should get people to like her. Making her the leader of the Restoration is already a weird choice, but outright having her previous arc be about failures, picking yourself up, and trusting your team, only to see her to the exact same shit but in a worse way see makes her come off as much worse.