Leica M8 – Infrared

The wireframe in this 3D representation is the very large ProPhoto RGB colour space. It exceeds CIE LAB in all except a few areas (primarily the bluey / greens). The solid plot is that of the Leica M8. It clearly is almost as large as ProPhoto RGB (and is far larger than Adobe RGB) but what has caught my eye are the three spikes, one in the greens and the other two in the mauves and reds.
The extreme spike in the very deep reds indicates to me that the M8 has a very weak to nonexistent infra-red blocking filter. Does this mean that the M8 could be an ideal camera for doing infra-red photography, by just adding a visible light blocking filter?
The above is a quote from a section of myLeica M8 review. I had examined some of the profiles thatCapture Oneprovides for various cameras using theColorThinkprofile utility. What I saw was the the M8 appeared to have extreme sensitivity into the infrared portion of the spectrum. The gamut plot above shows this.
Since I have an interest in Infrar...