Well 23&me business is not actually DNA testing, it's collecting and selling people's DNA data. The market for this on pets does not exist
Also, the way they handled their data breach (or the fact they had any) definitely stains their reputation
Finally, because they were doing the DNA testing at a loss and selling the DNA data has proven to be harder than expected, they are actually on the bring of bankruptcy
They completely underrepresented the scope of the breach.... That is what puts them in the sketchy category
https://www.wired.com/story/23andme-breach-sec-update/