Hi bro is impossible they are 5 weeks old, this is looking more like week 2 to me, lights might be weak too.
Next time try to inoculate for 2 weeks with some root enhancer that also acelerates the growth.
Happy growing
I think they will all pull through but you've got to look after them well.
I would have put them in a solo cup under a dome for the first week, until they're roughly the same size as yours now. I would then keep them in a solo cup until the roots filled all the available space.
Ultimately, they look healthy. Just not growing very fast, and unless you overwater them to death (easy in such big pots) they should pull through and fill the pots eventually,