No. Cannabis has evolved to self reproduce when needed. Different plants have different stress levels needed.
Properly bred old school strains rarely herm without tons of stress if at all. So the trait can be stress tested out with breeding.
That said. Some strains herm at the end and produce little to no pollen. Like sour diesel and the Blue Lemon thai. And they are more sensitive to grow in general but worth it in my opinion.
I am pretty sure crappy breeding is the cause for so much more herms these days.
Now at the end of my 5th grow I agree with your deduction 100%
Here is my observation of my failures (in a nutshell)
1st grow
I had seeds from smoke I brought and planted them on a whim
outside in my garden just let them do their thing no nuites but prob over watered
Kept looking for amber tri's @70%
Had to harvest bout 2 weeks early as the biggest one (6') got stole
Weed was OK but lil bit weak
2nd grow
Brought seeds online
Autoflower Sour Diesel inside with burple 900w light
FF nuites an soil
Kept looking for the elusive amber tri's
They hermed never seen the amber tri's
Done
3rd grow
Outside again
2 plants in 5 gal cloth pots (1 from online seed, 1 from found seed)
FF nuites
Took them inside 2 weeks or month before done
Burple light with makeshift tent
Looking for the golden tri's
Got some seeds, started to herm
Done
4th grow (inside)
Seeds purchased online
This time more meticulous with nuites
Mother Earth soil, Botanical Pro Grow nuites, 5 gal. cloth pots
2 TS 1000 MarsHydro lights, 5 x 5 x 6.5 Tent etc.
Looking for that gold in the tri's again!
After 11 weeks into flower I seen seeds forming
Done
5th grow
Clones from 40yr grower
I got them 8 weeks into veg
Put them in 3 gal pots with unknown soil (but my guess is it has auto release N)
in small tent w/burple light for 2 weeks to recover
Could not get good soil cause of the corona shit shut everything down.
Got to hot and humid in tent weather broke into summer to soon (9 wks into flower)
They outside now and 10 weeks into flower
So fk the amber tri's I am harvesting lol
I think I waited to long to harvest on previous grows although
in a perfect grow I should see amber but these strains are
temperamental and have a 8-10 wk into flower shelf life I think
and I cannot purchase seeds from another country
credit cards won't and my bank won't, even if I call them.
I dunno but will have to wait till summer is over to start my next inside grow
I would love to grow outside but wifey nixed it lol and there is that law
2 yrs in the pokey and 10 grand fine I believe here in the shitty state of NY
Well I will go over my notes and keep reading the threads (lurking lol) to improve my skill
Keep on keepin on y'all