To be fair to Bosnjo, this is what the BMW Motorrad website says:
Standard equipment
TFT colour display with connectivity
Full-LED headlight
DTC (Dynamic Traction Control)
Integral ABS Pro (inclination-optimised ABS)
3 riding modes (ECO, Rain and Road)
HSC (Hill Start Control)
USB charging socket
Optional equipment
Dynamic ESA (Electronic Suspension Adjustment with automatic load levelling and automatic damping mode)
Seat heating (rider and passenger)
Light package (e.g. with adaptive cornering light and cruising light)
Auxiliary LED lamps
Enduro-Package (with engine guard and handlebar riser)
Option 719 milled parts
Sport silencer
Riding Mode Pro, includes additional modes (Dynamic, Dynamic Pro, Enduro and Enduro Pro), riding mode pre selection (individualisation of numbers of riding modes), automated hill start control pro (HSC Pro), dynamic brake assistant DBC and engine brake control MSR
Rallye and Triple Black style variants
From this anyone would expect it to be an actual selectable mode rather than something running it the background. Something that you could switch on and off when you want.
I probably wouldn't want to use it ever, if I was running out of juice I would just ride economically until I got some. I certainly wouldn't want it there in the background where I can't select and deselect.
Has your BMW friend seen a non-TE version? what he say's doesn't correspond with what the website says.