NocturnaA locking knife with a ~4” blade that can be opened one-handed with a “flick” (per the description) is going to be very illegal in more places than not, both worldwide and stateside.
BlankmanTo each their own. I, for one, am glad flippers haven't completely taken over; personally not a big fan. I like thumb studs or automatics. (Yes, legality, sure. Follow-your-local-knife-laws.) Just don't like the ergonomics of moving my thumb from the back to a grip, it encourages fumbling.
I'm not dogmatic about it, but a tab makes it a much harder sell.
j.a.lI just don't like knives that potentially take two hands to open (for whatever reason), hence my desire for a flipper (or thumb stud) if well done. As you said, to each their own. :)