It's more that those things aren't "malware". The version of RogueKiller in TechSuite doesn't remove PUPs or PUMs (you need the Pro version for that), so it's not actually "removing" all the things it finds in those reports unless they're serious.
CCleaner doesn't actually remove malware, those are just files it's cleaning up. ADWCleaner marks tons of things as malware that are not actually harmful.
The risk is that you're far more likely to get a false positive, so we use Zemana and Reason Core Security which is basically 68 malware engines in order to ensure things are actually malware, before removing them.
The way scanners work in our industry, is they want you to think that they're removing as much as possible. So they mark things that are not really malware as malware.