Ok so there are guys who bend notes in Jazz. It's something that I still would say is not super-prevalent in the genre, so I'm guessing they're the exception rather than the rule. They also tend to pick all their notes individually. Is that a hard and fast rule? I would'nt know 'cause it's (Jazz) not my thing.
I noticed no one said anything about classical guys ( I got that one right. huh?

) and who could have a dorkier approach more steeped in nothing but theory & book learning than those guys
If you guys don't find trying to apply theory to your playing in real time (good luck w/ that at any kind of serious speed ..& I honestly mean that) restrictive & distracting, more power to you. It's just that that's not baggage I need to bog myself down with when I improvise (the bottom line being "I do just fine without it" ..so really...why?)
Improv can be super simple & just about the melody....
...but having a bit of feel and using one's ears, adding embellishments, some quirkiness/individuality, accentuation, vibrato etc (ie. feel) imo is what makes it sound nice. Sorry but immersing yourself in super-thick books of theory (or even pamphlets) can't/does'nt teach you "feel".
I can't tell you the amount of players I've heard who will string together dozens of arpeggio's and pick faster than a buzzing bee, throw in every generic technical lick you can imagine ..and you just know those dudes have sat around for days and nights working out every note & arp from books & instruction videos, so they can play it "clean" and perfect and then when they have to hold or bend an extended note at the end of a bar before launching into the next flurry of arpeggio's, it grates on your ears how terrible their vibrato/bending is 'cause they are all about theory & no feel. I'm just saying it happens more than y'all care to admit and yeah, I'd term that 'detrimental'.