No. No it wasn't. I'm going to continue calling out people posting this incorrect opinion until I stop seeing it.
McDonald-Tipungwuti was taken with the 22nd pick of the 2015 rookie draft. He was available to be drafted by any and every team, including ours. The WADA sanctions hadn't even been announced at the time, they weren't announced until a month later. His entry into the AFL happened to coincide with the supplements scandal, but the two are entirely unrelated.
And I've already specifically responded to one of your posts pointing all of this out before, so you have no excuse.