You make sweeping, opinionated, generalisations that you assert as fact. I completely disagree.I find sequencing quicker and easier for every instrument I use. I can complete a whole humanised Rhodes line in much less time than I can a saxophone line, and I've been playing that for years. When sequencing you can get every little nuance perfect, where playing live I tend to never meet my expectations.
I've sequenced realistic solo acoustic guitar before with a fair amount of success, I admit electric guitar is much more difficult, but as the years go by it's getting easier and easier to replicate. Rhythm guitar may be easier for you but not for everyone. Lead instruments are MUCH easier to sequence IMO, less to worry about, can focus more on the placement of each note and it's tone. I've done a convincing lead solo before but cannot get the rhythm sound right, sequencing the various guitar grips and how each string would be strummed in a chord is a nightmare.
Your opinion is not fact, everyone is different.