Spear points offer more utility in cutting - they closely resemble drop points, which allow running the edge under the material to be cut without cutting the stuff underneath.
A tanto can do the same, but with a more acute grind to the ramp, it won't get as far underneath, and needs more pressure.
Spear points have finer tips, allowing close cutting and more precise control, a plus with the extra choil. Tanto tips are blunter and can be used theoretically with more pressure, but at the loss of a variable contact angle. It's either good for the tanto or no good at all.
And, as mentioned, spear points are much more popular - which means the average user understands the utility and looks are superior. I know tanto tips have been popular in tactical knives for some time, but I believe it was because the originators needed to differentiate their product on the market, not because they were overwhelmingly superior.
Many tanto tips come in chisel grind only, don't know if Strider does it that way - I carry a spearpoint. Chisel grinds tend to steer the cut to one side, and are usually ground on the side opposite the best for a right hander. You have to lay the blade down at a different angle than what you might be used to for a regular V grind, and it takes months getting used to it.
I keep one tanto around to remind me how different they can be - but I don't EDC it. It's a different animal, and I don't want to change every other knife over just to keep a familiar range of motion and use.