I really can't believe this is a thing - I saw mention of this on the IJC review as well.
You will still be able to mark you guard by tilting your foot slightly to mark your guard with a different spike.
Having the spikes in the right place for your foot is rather more important than having one at the front for marking your guard!
Ha, agreed it shouldn't really be at the top of priorities! Never had any issues with conventional spike placement though, and old habits die hard

I'm sure I'd get used to it no problem, but then again I'm also sure it would irritate the hell out of me for a few games at least.