Yeah, sort of...

If the high and low sections of the xover are intended to be fed separately, then the only way for the speaker to work if you don't have bi-wire cables is to use a jumper (or the commonly supplied brass straps) across the binding posts. Perhaps brass straps aren't great conductors for this purpose.

The conclusion that I'd draw from this (and the one that XLO offers) is that you could replace the brass straps with good-quality wire jumpers and be fine.

As with many other things audio, I suspect that there may be some measureable differences (improvements?) that you could attribute to the bi-wire capability, but whether those differences are audible or not is another matter.

I've never taken the time to A/B my speakers both ways -- I've always bi-wireed at the recommendation of the speaker manufacturer.