New time grower and I need help

It could have been more than a little bit, or enough... we don't know what the root mass was like when you bought it. Maybe it wasn't sufficiently rooted from the start and had been transplanted shortly prior to sale.

I would advise you not to transplant at dusk/nightfall.

Transplant only early morning or afternoon when the plant is perky.
Even late afternoon is too late to transplant.
Plants know when night begins to fall and will naturally wilt some
if no supplemental lights are on the plants and it makes it harder for the plant to perk up and sometimes they don't perk back up do to wrong timing at transplant.
When you transplant at dusk/dawn the plant will wilt and it will take
1 to a few days to perk back up as long as the watering is very minimal.

Bro i cant believe you transplanted a plant that is already in shock from transplanting. Also why did you bury half the plant????
From now on only transplant when it has been in pot for a while and you know its root bound. I doubt it will survive now.