Yea.... what I dislike about pick is the tone when playing quietly. It's really thin... but loudly it's a unique sound that can't really be replicated with just fingers.
I mean, this is coming from a finger style player.
But I sat with Chris in the late 90s and watched him play while Yes was composing and rehearsing for an upcoming album (they were renting my band's space, in my drummer's home, so we all got to know each other very well). In the soft parts, when he still used pick, it was sort of boring and unexpressive. I used to think the same thing about Greg Lake's playing, although I FAR prefer Squire's playing, always have, always will (one of my idols). But he could play with his fingers too etc, just up to what ever sound he wanted... and during rehearsals/composing time he didn't care as much about the expression as he did about the entire group's performance. I get that - these guys were playing togehter for hours nearly every day.... there's only so much energy you can spend on subtlety when you're not only playing your part but also co-composing everyone's parts and producing/arranging the whole thing, although Jon Anderson was very clearly in charge of everything. Jon was the strong (very very strong) personality who kept control over things constantly, which was critical. Chris and Steve Howe were both vocal in opinions and ideas for musical contributions - Jon was the organizer as well as a principal composer. Man Jon is a crazy good musician (I mean, like, considering he's "just" a singer, if you know what I mean - most singers can't keep track of everyone else's parts perfectly let along compose it all with just the voice, and keep good organizational control over the process).
Anyhow - when they got further with their compositions, Squire started paying more attention to his own expression/tone, and it magically turned up the energy for the entire group.
Quite an experience, I'm tellin ya.