What does seem "wrong" sometimes is the amazingly streaky nature of RNG failure.

Now I will note that I do not craft as much as I used to... just waiting for Heavensward at this point... but I recall that there would be a lot of synths where I would have a much higher than expected success rate... typically leading to no reclaim.
OR I would have a synth where before I even touch an action... something explodes.

9 80% HT's? 7 exploded.
Goods to replenish CP? Nah you're good bro!
Absolutely horrible synth demanding Reclaim? Nope that blows up too!!!

Or my personal favorite. Having to do 2 80% RS at the start of the synth... boom, Boom... Reclaim... BOOM!!!! - on an expensive synths that is "put fist through monitor" rage inducing.