I will attempt to save craigson the trouble since I posted a quazi explaination above already. basically man breeding is selecting for desirable traits when everyone desires the same traits we select for what is making money or what is trendy or back before carbon filtering in the war on drugs we selected for less smell etc... over decades this "loses" the traits we did not select for. this is how many believe rks was lost. it was too stinky to grow on a large scale so it went the way of the dodo.
I am no geneticist but I also think it is detrimental because some traits are inherently more rare and as we move towards a homogenous plant it becomes harder to dig back into the gene pool and get terp profiles and traits that us old heads remember.
in the end genetic diversity is needed to ensure the plants survival in the long run or else everything wil one day smell and look the same. that is science
it happened in the food and other agriculture industries already
on a side note there is so much this industry commercial growers don't understand, things like terps are not the only thing making it smell, for this reason other factrs like bio protectents could be responsible for rks and other rare scents. in other words these are ersponses to their soil or predators etc. things like when a plant puts off pheromones for one insect to attract thekm into hunt an insect that is eating the plant. these smels can be strong and have nothing to do with terps. esters is an example. also I have researched rks in attempt to figure this out and I believe it is possible for reasons I wont go into here but have shared via email with some ppl more capable than me on the subject which is I sulfur in higher amounts causes the skunk smell in some strains. this has to do with how sulfur is used and how it bonds to terps and is already known to replicate the skunk and rotten egg smell in nature under similar scenarios. to be clear this was a 10000ft summary, I may even have used a wrong term its been a year since I sent that email with all my info from reading books on esters and terps not about cannabis
addendum
my stoned ass realized I went on and on and misread the question lol, anyway feminized seeds exponentially ruin diversity by removing literally half the gene pool from the breeding "pair" it is only the genetics of one parent not two. hence many times less diverse. open pollination is what is needed amn, and an indoor industry on top of commercial crop that ppl like one flavor basically of is gonna destroy cannabis in 50 years
and the idea is to halve the gene pool tho but yes variety is varying still lol
