Board Thread:Questions and Answers/@comment-2.218.215.241-20131020132815/@comment-6697950-20170228110756

Kana are based on pronunciation, not spelling, so no, there's no reason why the A in Agil should be rendered as ア if it's pronounced more like an エ. Nor is there any reason to assume that Agil was meant to be a reference, since the author admitted on numerous occasions that he doesn't put that much thought into his names.