Their software usually IS unwanted, Malwarebytes label is accurate
Enigma's programs are (1) routinely bundled with other programs, (2) often installed without informed user consent, and (3) and do not cleanly uninstall. That, in and of itself, makes it a "potentially unwanted program".
Item (4) in that their software is more likely to corrupt the computer than fix it is beside the point, because by the time you would need something like that you are probably better off reformatting and starting over anyway.
They also have a documented history of suing security researchers and computer enthusiasts who publish honest reviews that are negative, as well as the blogging platforms that host those personal opinions, all in a deliberate effort to keep people from uninstalling their ad-supported and largely defective junk. That is NOT the behavior of a honest and ethical company.
Whenever I find their programs on the PC of a friend or client I remove their useless programs and read the user the riot act about installing garbage from the Internet.