Pve build

[Universalpro]

So my current build is this( lvl 40 ) :
Hor 4/5
Vb 5/5
Wm 5/5
Ss 3/5
Passives :
5/5 str int Dex armor
3/5 damage
I have recently joined the forums and browsed through the threads and realized that pros use a really different guild( less passives and multiple skills )
But I don't get it why u need to use juggernaut because my current stats are 2055 armor 364.7 DMG 1340 mana 400 smthing DPs(40 lvl ) .. I think its enough armor to tank through All elite bosses and enough mana too..
Most players use blood ruby of shuyal to balance the int and Dex stats but I can balance them through my passives and use elondorian ring of fitness( probably the best for warrior currently ) and focus to improve my health and armor..( 41 lvl predicted stats : 2140 armor 392 DMG 6640 health without mythics )
I know the skills are a little bad to do bosses but I don't face any problems doing elite bosses

So I need some advice with whether the build is fine or should I use multiple skills.. I have ready crows feet build but I didn't find the idea of using multiple skills so impressive .