I see a lot of joy for slicer tools as a way to deal with Imperial Aces lists (particularly the Palpatine Aces variety).
I personally do tend to run Imperial aces a lot, though I don't like/run palp aces, but I can see the need for some adjustments to make the palp aces less dominant.
That said, the biggest problem with the slicer tools IMNSHO is that it doesn't just counter PTL, it potentially nerfs everything that has a mechanic that requires stress (especially on low hull ships).
There are a lot of cool (and under-used) mechanics that also require taking stress (daredevil, lightning reflexes, rage, etc)... and probably the most important one is the k-turn and s-loop on most ships.
If having to make a red maneuver not only means that you lose your actions but can open you to damage, I'd say it's going to make ships that already have white k- or s- moves even more powerful (cough, Brobots, cough jumpmasters and, yes, my beloved Defender... though the Defender is likely expensive enough to not be that affected).
And that's going to come at the expense of basic ships ... not good (again, IMNSHO).
If the slicer was R1, I think it'd be a lot less of a problem... powerful, but not necessarily broken... well if it gets rid of the skipping shields part too.
But the better way, I think, is to errata PTL to unique or maybe increase the points cost to 4 or even 5 (or, perhaps the biggest fix, make Palpatine epic-only).
I do agree that PTL is probably too common and could use some toning down but the slicer (at ONE POINT?!?!?!!!) is too much.