Krugs are ignored because they take too long to split, adding slightly more experience isn't good
Total Krug XP is going from 160 >> 165, with the majority of the experience being moved from the bigger Krug to the smaller Krugs. Riot is trying to incentivize clearing the entire camp however, the real issue is not that the experience isn't worth it, but that it takes so long to clear the entire camp because of the splitting animation that adds valuable seconds on to the killing time.
To fix this issue, all that needs to be done is for the splitting to occur much faster so the camp doesn't take so long. And maybe bring the early game damage down on them because the first clear with Krugs is brutal to almost everyone who tries to kill them.
Source: https://twitter.com/riot_captain/status/1222236903103062017
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