not for me, I am a brit and yank simultaneously.
its for someone else who is a UK citizen, has been to US numerous times on visa waiver, had immigration ointerview and just waiting for background check to be completed.
I think that once u have your interview date from that point onwards you can not come to US, thats what I remember.
Obviously it is an issue for ppl who have to be here for business trips and cant because of this stuff.
They need L1 Visa (if they work in a Multinational company, with or without blanket protection). This is a dual-intent visa that allows them to apply for sponsered immigration whenever and still enter and leave US, Or apply for Green card after working in US for a year.
Self business owner don't have option I guess.