I disagree.
Maybe duels are more stall based, but first, you are not enforced to play like that to succeed in a tournament, and secondly, I'm not sure that lax has anything to do with this stall based tendancy.
Bliss was and is used, with or without lax. And with our without lax, when you use bliss, you have to expect to face things that can rekt your "stall based meta", like ursaring, breloom, or others things that can signifantly hurt your walls and open a way for a DDancer or smthing.
On the SpeA side, you can still use this pesky dugtrio to destroy bliss, severely damages ludi, or even use things like explosion exeggcutor, and proceed to sweep with starmie, rain dance ludi/kingdra, CM zam etc...so you CAN chose to play offensively, stall is still a popular play style, but not the only way to win, and I believe you don't need lax for that.
On the stall side, well, bliss is not the only way to handle those scary CMinders. for bro you can trick it, random toxic it, encore it, spore/sub seed it with breloom, RK it with megamiss CB heracross, for espeon/zam, spDef invested arcanine can do the job quite well, or you can revenge it with dug or CB aero, or even set up a DD kingdra in RK (if zam or espeon don't have more than a CM), and there are probably others ways to deal with it but I don't have them in mind atm. Or you can also dont' be a set up bait for them, for example by playing less stall based teams.
And at least, I don't really see how using lax will change the meta at a point where "the smarter players wins not the more patient". When lax is here, you still have to be patient enough until things that can handle your very smart curselax are out...