Map doesn't look very accurate to me tbh. What they've labelled Mahon is hardly Mahon - apart from Mahon Golf Course, Ballintemple has moved east (The line between 18 and 19 through The Venue Bar would surely be the heart of Ballintemple), and I think Ballinlough again has been moved east of where it more properly is imhoa. Docklands looks a bit of a stretch from the docks too
Your claim that it goes between two population centres of Ballinlough and Ballintemple is a big stretch.
Of course much depends on what the criteria is that they've in mind - apart from being another sod-turning exercise for the plebs, and to be cheer led by the shills.
If it's to move relatively large bodies of people from population centres, shopping, hospitals and schools and colleges then I think they've missed a trick. But I don't think it's likely to come to fruition any time soon so I won't be losing any sleep on it.