No, mods are modifications not "improvements".
And even if, improvement wouldn't mean "just more power". Look at TFC or mods like that. Or witchery or Raiclraft. Mods that add alot of interesting stuff without providing much additional power.
Actually I've read an interesting post about ore multiplication and how useless it in fact is. Something among the line of it is only needed if the mods recipes are balanced around having way more ore, in which case it screws with other mods that go with lower multiplication values as well as Vanilla (which already has problems with its abundance). And how it would be better to instead of multiplying it, to process it into something else (e.g. Steel) that would gate your own mods items, instead of higher requirements and would not screw up parts of Vanilla or other mods. But I guess it's a few years to late for this isn't it? Even though i would love if mods would follow the 2x standard instead of going even higher (which in some cases isn't even needed for the mod itself, looking at you mekanism). Things like Gravel Ores don't help either
Something similar goes for equipment. I mean Thaucmraft even shows how it's done. It adds an interesting toy, harder to get than a diamond sword, but not a vast increase of power. Instead it offers nice side-effects. Or you could just make a bland normal sword that does 14 damage and only costs a bit of Obsidian and Osmium -.-