Not hard to see why, little to no convective inhibition, which would mean messy upscale growth, but weak forcing should help dampen that a bit along with dry mid levels.
Plenty of low level moisture and instability coinciding with healthy lapse rates throughout vertical profile will help plenty with low level stretching of updrafts and promote strong helicity entrainment.
There’s a bit of veering between 850-650mb, which makes the shear profile a bit awkward and might knock down the strength of the mesocyclones a bit, but tornadoes which form at the surface and up wouldn’t be affected by this.
Hodograph shows this exactly with the classic sickle shaped sounding indicating a heavily sheared environment in the low to mid levels.
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