From a user on Reddit, _cth_. Need I say more? Semrush doesn’t care about how bad their product is, or the effect it has on the public.
Here’s someone paying US$14,000 per month for junk, so imagine how bad the data must be for the free or lower-paying users. I would be surprised if this doesn’t wind up in something far messier, when more get caught up in the disinformation trap that Semrush appears to have spurred.