It's already been said before, best way to fix continuation is not removing part of gnb's identity entirely, but increasing the range on those ogcds to 5y. Also don't forget that bow shock AND now double down both have a radius of 5y if movement still is a problem for you.
Personally i've never experienced trouble moving the bosses out of all the tiers except for e5s when you had to position Ramuh in a split second right after 14 spears for chain lighting and even then sprint helped with that. Never lost a single gcd. If it's logs you care about, trust me, if you absolutely have to clip at any point in fight all other gnbs have the same problems as you, you're not at a disadvantage compared to them.
If you are out of weave windows and forgot to press a defensive cd before the burst window, you can just delay one of you non-continuation ogcds by 1 gcd, i don't ever recall losing a use by doing that. Yeah, you might drift that rough divide out of raid buffs, but to be honest losing 40 potency is not a huge deal in the grand scheme of things.
I care about optimizing my performance on all the fights myself, but something like continuation i accept as a part of the job. Sure, continuation adds something to consider while playing, when other tanks don't face any of those challenges, but all those ogcd and continuation precisely is what makes gnb fun for everyone who play it for the job that it is. Adding hypervelocity was only a natural evolution to that. And who knows, maybe they'll design bosses in a way that you'll have to move them far distances only during your downtime phase as a gnb.