John,
You are soooooo correct...
I have to admit though, for me, I haven't had
much of a problem with that..
For me, if I've had a problem when I do my
seeds in the
greenhouse, it's been from either too much heat *not opening the door and vent fast enough* or too moist, again from the heat and not getting the door open fast enough..
But you are absolutely correct...
And I would suggest for a first time, new, novice gardener, or one just starting out with
seeds, to stick with just the bagged soilless mixes and go by the book..
because it can cause more problems sometimes and they don't know what went wrong when it does happen..