Even in a hypothetical scenario where you'd be able to get hold of these drivers in some way and would actually get it working (with a modern kernel, so all dandy from a functional point of view) - what then? No one besides yourself would touch that driver with a ten foot pole, because of its legal status, meaning you'd have to 'maintain' (aka keep it running, somehow) forever - that's not going to work longer term.
We already have a couple of drivers which have no legal issues (e.g. RealTek staging or -vendor drivers, RaLink rt3883 iNIC - some with a 'perhaps okayish, fingers crossed, eyes closed' legal status like Lantiq XWAY WAVE300), but where the source is so ugly that they're never going to be merged mainline - look at their status. Yes, someone, sometime ago, may have gotten them mostly working (in case of the RealTek vendor drivers you'll see multiple competing github repos, each with their own share of bugs), but without them behaving like a proper mainline driver (and them actually being mainline or on the road towards mainline), their future fate is doomed anyways - now adding legal complications on top means throwing a spanner into it from the get go. Technical deficiencies could be fixed, long term, with lots of efforts going in - legal complications can't, they hit a stone wall and will taint the driver forever (look at the history behind tiacx/ acx100 and its attempts of going mainline).