Estlcam does things the same way for all the tabs on a cut, so if you have a shape, and the tabs are set to “full depth” then they should be.
The “gotcha” here is that Estlcam does not go all the way to the clearance plane for tabs. It will go to the top of the tab, which is the top of the material – so far as it knows. If your bed isn’t level with respect to the machine, then it might still plow through your material, but the machine will think that Z=0 at the time. Alternately, you will probably end up with cuts that do not go all the way through the material.
If your spoilboard is level, it might be your holddowns that are allowing the material to rise up to meet the bit. This can happen in the middle of a thin sheet, or anywhere that isn’t close to something holding the sheet down. Most of us use an upcut bit (The default bits sold by V1, for example) which does have a tendency to pull the sheet upwards as it cuts. WIth thin material, the sheet can lift upwards, and then your tabs will get cut.
I don’t think that Estlcam has an option to raise to the clearance plane for tabs. I’ve never seen it do that for me, but I’ve seen it skim the top of my material. (My bed isn’t 100% level with respect to the machine.)