You must take the gyro, because it seems they have 4 different gyro.

I did list all the other companion type skills for other classes. What is wrong with understanding that gyro are skill to slot over your skill bar?

So... let say the condi build he is playing have into his utility bar:

Healing turret, Flame Thrower, Grenade Kit, Tool kit, Mortar.

If he want the healing gyro, he need to put that into the healing turret slot. So he will loose the toolbet skill for the healing turret and he will get the toolbelt skill for the healing gyro.

Is that correct?

The same for FT, Nades or Tools...

So now, if he want the FLame gyro, he will need to remove either tool, nades or FT. This will have toolbelt skill influence, right?

Please calm down and try to understand the point of view of people that seem to get it differently than yours.

OP said:

"my primary concerns is the replacement of the toolbelt skills with these drones"

Should had been:

"my primary concerns is the replacement of the toolbelt skills with these drones toolbelt skill"

You said:

"Toolbelt skills ARE NOT replaced by Gyros. Gyros are a new Utility type, that have their own toolbelt skills associated with them."

OP didn't use the right words to explain the fact that he will loose toolbet skill accordly to the utility skill he will need to swap out for a drone.

You said it yourself, Gyro will be utility and so, they will need to be over the skills/utility bar at position 6, 7, 8, 9.

The same for Guardian Spirit Weapon, Necro minions and so on.

But whatever it is (we will see more tomorrow), overreacting over this is surely not the best way to express your point.