According to the spec, basic point rendering is deprecated and point rasterization is performed as though point sprites were enabled. Removing even point sprites would leave us with nothing but geometry shaders. Point sprites, though not perfect, are pretty fast on current and older hardware, so they are still useful IMO.
Good point. Besides, one can safely ignore them, with no long term side effects.
For the record. Wide lines deprecation will be deprecated in 3.1 spec. Meaning they are not deprecated anymore. So they will stay.
That’s good news in my opinion.