Excellent movement on Spark's part. I've personally been handed a non-compete by a venture capital fund that would make a producer blush. It's preposterous what some firms try to con entrepreneurs into.
I'm really not sure why I'm expected to muster sympathy for entrepreneurs facing noncompetes from VC's. Isn't this an eminently reasonable use for noncompetes? You're epsilon from corporate-to-corporate contracts in this scenario.