User blog comment:Telaruhn/Aldric, The Elder Guardian/@comment-24802981-20140411141925/@comment-4773210-20140411182145

The skillshots intercepted still affect Aldric in both damage and in other effects, such as CC, and that include AoE abilities. In other words, AoE projectiles that he intercepts only affect him, and then they stop. Allowing him to ignore collision is interesting, but may be too much in combination with that the skilll already does. The same goes for increasing collision size; he already has the ability to reposition himself should be need to in order to block projectiles. And since he gains a shield from his passive when he dashes, he already gains a form of damage reduction. Blocking dashes would be too overpowering, especially since his Q and R already interupt most in-progress dashes.

Thanks for the feedback :)