Yep.
BUT...since the question was specific to the LCES004 frame which is a "trail enduro" geometry design with a slightly longer chainstay (much like a Trek Rail)...mullet pros outweighs the cons for this particular frame. It's designed for a 2.6 - 3.0 plus 27.5er wheel, meant for playful, aggressive riding styles. However, if one's riding style is more XC, than by all means squeeze in the 2.4" 29er rear tire. Also, the skinny 29er rear would be limited by the extra weight and muddy conditions whereby most Emtbs run 2.6 width or higher because the extra weight of the motor and battery gives the very stable "planted" feel. So, it depends! Mullet configurations in a 27.5 frame (which this is) will give more options and more playfulness, but not be unusually unstable in it's performance characteristics due to the longer chain stay and extra motor/battery weight. This will mediate gyroscopic/centripetal forces, providing a good balance. Great for switchbacks or agility on a trail that has more pop, hop, and drop opportunities, making it less boring if too groomed/flat singletrack.
It does for me anyway!
If it was a true 29er designed E-mtb frame that can run wider tires with great mud clearance, than that's different story.
All that been said it's ultimately personal preference. If you're able to try both wheel sizes to see what best fits your preferred style and typical trail conditions. I have a buddy that has the Trek Rail with a "flip chip" for either rear wheel size. He'll run mullet for tight technical trails (maneuverability) and his main configuration. And when he occasionally bikepacks, he uses the 29er configuration for flatter conditions for XC trails, and dirt roads for greater efficiency and battery range. But the Rail is designed to accommodate either wheel size. Ours in contrast, is more designed for 27.5er setup (IMHO).
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