Canon has completely failed at mirrorless cameras. Meanwhile, competitors like Olympus and Sony have both embraced and excelled at the format, which gives you DSLR quality images in a significantly smaller, and mirror-free body.
Canon has languished. Last year it even dragged it's feet on giving American audiences a taste at its newest mirrorless attempts. The Canon EOS M3 arrived in the US months after it was announced and available overseas. The new Canon EOS M5 will not wait so long.