Yeah, unfortunately I have to agree. The problem is I liked everything else about the Union Atlases over most Burtons when I bought them last year. The high back, ankle strap, heelcup adjustability, etc. The cap strap kept slipping off during runs whether I had on my Burton Rampants or Salomon Synapses, even on mellow runs.
I just bought Burton Getta-grip toe straps and now it's perfect, but it would be nice not to have this issue out of the box.