BOTRK can now Lifesteal off passive ...please explain, only such an item with so much into one slot

i have a lot of items that i would like to have that would be balanced imo. like say a cdr deathcap. stat wise it could be perfectly cost efficient. why should we need to look for another slot to get cdr. (same logic for bortk why need we get another slot for attack speed why can't we merge them) these stats work in tandem separating them forces you to expand/spread your build over multiple item slots thereby usually making you squishier or tankier not middle ground, except in the instance of bortk hence why its used on both tanks and full dps champs).

aren't the max cost available per slot and the max number of slot all the mechanism we need to keep builds balanced. why can't we give items any stat what so ever into one item so long as its within fair cost margins... like a cdr deathcap item. where you'd rather not use another slot for a cdr item but already have considerable ap that would benefit from a % ap bonus.

so i'm bringing up botrk becau se it can "essentially" crit. If crit was flatten based on an item's percent change it would just add consistent bonus ad damage on everyhit like botrk passive does. with 300 ad and 20% crit you'd do an extra 60 damage (without ie). With bortk you can now do easily 125 damage on hit. now because this was gated since you wouldn't lifesteal from it and was thus differentiated from crit. but now it does as such its very much like crit in a sense.

so botrk could be said to have like 35% crit dmg lifesteal attack speed all in one item. isn't it a bit much?

then again what is wrong with having 2 items with lifesteal crit . if its cost efficient what difference does it make? why cant you have an item that can cover mostly everything you need in one slot.

like botrk triforce is one example of two items that can perform what might be only possible with 3 or even 4 items for different characters.

example if you want crit thats one slot (sheen does a minor for of this burst) if you want lifesteal that's another item, if you want then you need yet another item to get some for of active slow/chasing ability like phage bortkactive that also deals damage.

anyways now that botrk can lifesteal its essentially a lifesteal crit attackspeed item with an active on it. this item has it all.

i actually don't mind it, but give other items something comparable. or limit botrk.

Also i'm questioning whether it has exceeded its margin of stats to cost ratio now that it can lifesteal off of its passive.