why is Better.com using that language? all that workers can do is sell their labor time, while the property-owners they work for do not (since they earn rents from ownership). in this case, the workers create and develop some intellectual property (software), yet do not own the fruits of their own labor and are instead paid a wage. in other words: workers work on things that are not democratically held in common ownership (even actively made artificially scarce as an intellectual property).
my point is: we could argue the workers are rightfully taking back more than what they are paid under our current economic system, since the property-owners take too much to begin with; they steal — to use your word — by not sharing the (intellectual) property, the source of wealth.
edit: i've edited to clarify that I am responding to the definition of the word stealing used by Better.com. as Kye/OP pointed out below, this is not Kye's personal definition for the word stealing and it was terminology they copied verbatim from this current context (used by one of the parties involved).