Ah, the good ol’ skunk scarecrow.
People have been making various grades of hashish for millennia, with THC content many times that of dry flower — you’d think someone would have noticed if it was more likely to produce psychological issues?
Yet, there is no high-THC hash scare — it’s almost if someone wanted you to avoid good quality cannabis and be content consuming whatever ditch weed global criminal organisations produce.
Hashish is generally made with high-CBD strains (which is partly why hash tends to mong you out more than weed).
It seems there is evidence that CBD moderates the trippy effects of THC, and reduces the propensity of the product to trigger psychotic states in suceptible individuals.
BTW: in my experience, modern weed strains are beaten in terms of hit-per-gram only by the rarest, highest-grade black hash.
There are various types of hashish; the traditional Moroccan screened variety is almost certainly all cultivated indica, but Himalayan charas is almost certainly all landrace sativa.
I did get a hypotension episode a few years ago, as a result of starting a new strain a bit over-enthusiastically. But even coffee can cause palpitations, if you drink too much just because you like drinking coffee.
My understanding is that certain high-THC strains are much more likely to give rise to psychological problems than other strains. I'm not aware that CBD as such can result in psychological problems.