Unless all blockchain analysis companies cooperate in terms of what is tainted and what isn't, I would expect that they show different results and taint scores.
And now here lies the problem - nobody can even agree on the taint of the UTXOs so they will end up like the antivirus companies, who cannot even agree on even whether a file is malware, let alone agree on the names of the malware: "This EXE is safe, this RAR file is not (simply because only pirates use this extension), this .DOCX with embedded macro gibberish is safe, but this one is not!"
(N.B. the entire model of anti-viruses on microsoft windows is a complete joke, as they all depend on MS ultimately to integrate their codes into their closed-source kernel. Let's not turn Bitcoin into a fragmented abomination policed by chainanals behaving like rogue AV companies.)