But does it matter what they look like in the indoor garden under purple lighting? I mean eventually you take them out and admire them in natural lighting. Unless, of course, you have customers visiting your garden...
If these LEDs let us design LED fixtures that make both humans plants happy while cutting costs vs MH Lamps, then these lamps will gain market wherever we currently use high quality MH lighting on plants. This might let interior designers substitute MH lamps for plants displays in retail, office, or living spaces.
Likewise, broad spectrum light can reduce fatigue and boost the efficacy of visual plant inspections. If the new LEDs cost the same as the purple LEDs, then indoor farmers may choose the new LEDs to make their work more productive.
i.e. when someone buys them, they'll have to adjust to natural (i.e. sun) light, rather than the artificial growth lighting.