I don't think it's entirely accurate to say "SW Abramsverse." Abrams is only responsible for TFA, not any of the other movies currently in development.
Well, Abrams is producing the next two chapters in the trilogy, though he has no involvement in the
Star Wars Stories anthology movies. But yes, it's totally misinformed to call it an "Abramsverse." Kathleen Kennedy, the new head of Lucasfilm, is the person in charge of the new wave of
Star Wars movies; Abrams is simply one of the filmmakers she hired to make them, along with others including Lawrence Kasdan, Rian Johnson, Colin Trevorrow, Derek Connolly, Gareth Edwards, Gary Whitta & Chris Weitz, and Phil Lord & Chris Miller.
Also, it's not a continuity reboot like the Abramsverse, except where the tie-ins are concerned. It's a direct continuation of the original six films. It's not a reinvention of the universe and a recasting of its leads, it's an attempt to continue it as faithfully as possible with as many of the original players as feasible. There's just no legitimate comparison.
Also, the decision to abandon the EU and start up a new continuity and canon was made by higher ups at Disney, not Abrams. I would be very surprised if Abrams even had input on the matter.
Well, the decision to reboot
Star Trek was probably made by CBS and Paramount to begin with. Once they hired Abrams and Bad Robot as the production company, they gave them carte blanche to reinvent it, but the decision to reinvent it in the first place was probably the studio's. The reason it doesn't work as an analogy is that changing tie-in novel continuity is a totally, hugely, completely different matter from rebooting the screen continuity. Tie-ins are a tiny sidebar to the screen works. They're read by 1-2% of the screen audience. No matter how much Lucasfilm may have made noises about them being "canonical," they were never more than an optional and expendable adjunct to the canon.
Star Wars comics and novels were contradicted and overwritten many, many times over the years; it was just done case-by-case instead of wholesale. Most franchises that have tie-ins coming out while new screen works are being produced will have tie-ins contradicted and overwritten by new screen continuity; there's nothing unusual about that.
And when tie-ins are contradicted, it's
because the canonical continuity is being added to, and what happens in screen canon automatically overrides anything else. It's in service to the original continuity, because tie-ins always follow the lead of the canonical continuity even when it means ignoring earlier tie-ins. So it's not at all the same thing as rebooting the canonical continuity -- in fact, it's pretty much the opposite of that. So there is just no legitimate comparison between the
Star Wars tie-ins' reset and the Abramsverse reboot. What happened with the SW novels is more like what happened with Pocket's
Star Trek novels and DC's ST comics when
The Next Generation came along. The creation of a new, official continuation of the canonical universe meant establishing facts that conflicted with the conjectures of earlier tie-ins, and so the previous tie-in continuities had to be disregarded and new tie-ins written to be consistent with the newly expanded canon instead. The only difference is that Lucasfilm announced the change and carried it out more systematically, and that it attempted to bring the new tie-ins into the tent and keep them mutually consistent, rather than what happened with ST tie-ins in the '90s, when each book was completely standalone and unacknowledged by everything else.