Those Corrosive + Fire procs will get in the way of generating slash procs, no matter how much added 'base' damage the mods give you. You don't want a 'slash proc' sword that also has 3 element mods. But also, when you're building a status-oriented weapon, you want it to be reliable. Most weapons get plenty of status with just the core mods you'd use in other builds, so there's no reason to vary the builds much. The second problem is how status effects work. Don't use Pressure Point (or the mutually exclusive melee mods) if you can use Condition Overload, because its more efficient to also get crit and element damage. Since you can't stack any specific stats, the best build inevitably will fall down to the single best mod of each category. You can't make a 'tons of radiation damage' weapon because at best you can get 4 mods that give the proper elements (and if it isn't a status weapon, you're using some really inefficient mods).

What that means is that you can't 'build a multishot weapon' by stacking the best multitshot, 2nd best multishot, and 3rd best multishot, even if you wanted to. And in almost every case where there is a 2nd option, the alternate is far inferior. First, and most obviously, is that each 'type' of mod really only has a single option.

Warframe primary status mods