Can multiple rows of Maggots be targeted by split damage instances?

Name
Can multiple rows of Maggots be targeted by split damage instances?
Details
When fighting Maggoth, players are only allowed to target the top row of Maggots with spells and abilities. If a spell or ability that natively allows players to split damage is used, only the Maggots on the top row are valid targets, even if there is sufficient damage to clear out the top row and start on the next row.
Cards
Monstrous Inferno
Mages
Garu
Nemeses
Maggoth
Other
Colossal Force
References
https://discordapp.com/channels/488460591128641536/544907122190581761/612771012395663401