"When this card is Tribute Summoned by Tributing a "Qli" monster(s): You can Special Summon 2 "Qli" monsters from your Deck, but destroy them during the End Phase." effect is a Trigger Effect. (It does not target and it can only be activated when this card was Tribute Summoned by Tributing 1 or more "Qli" monsters.)
If the effect of "Qlipper Launch" is applied on a "Qliphort Carrier" that was Normal Summoned without Tributing, the effect of "Qliphort Carrier" is negated and its Level returns to its original Level which is 6. Its ATK returns to its original value which is 2400 ATK and it gains 300 ATK by the effect of "Qlipper Launch", for a total of 2700 ATK. When the effect of "Qlipper Launch" stops applying, its Level and ATK remain at their original values which they are Level 6 and 2400 ATK.
Because of the "If this card is Normal Summoned without Tributing, or is Special Summoned, its Level becomes 4 and its original ATK becomes 1800." effect, the original ATK of a "Qliphort Carrier" that was Normal Summoned without Tributing is 1800. Therefore, since its current ATK is not different from its original ATK, it cannot be targeted by the effect of "Number 103: Ragnazero".