I'd take that out one more step.
Yeah, a bunch of people here on TB may make a mod or two to their Fenders, but out in the "real world", most people seem leave them alone, and just play them.
Of the countless Fenders I've encountered out in the real world playing, darned few had any kinds of mods.
I'm going to comment on this, even though I didn't make the original comment. You need to put the whole thing into perspective and look at some history.
There's a whole aftermarket of parts for fenders... bridges, pickups, pickguards, even necks. Why is that? These companies wouldn't be in business if people weren't buying these parts.
Even companies like Warmoth got started not for people to build their own bass, but for upgraded parts. See the thing is times have changed. When Warmoth (Boogie Bodies) and DiMarzio and Leo Quan started making parts for Fenders, there weren't all these newer active basses and stuff on the market. Back in 1976, if you wanted a new pickup or neck for your P bass, you had to get Fender parts. Or stick some other pickup in your bass. And people did, because they wanted something different.
Back in the 70's, bass players had about 4 choices of a pro bass to purchase. Gibsons and Guilds weren't always so popular, and Ric's had a very distinctive tone. Some people are fine with things just the way they come from the factory, but a lot of people aren't. I can name three off the top of my head... Marcus Miller, Geddy Lee and Jeff Berlin. All three of them modded their Fenders to make them better to them. Now you can have a custom bass built for not much more than a high end production model. But that was very rare back then.
Because the choices are wider now, you might want to buy a Fender precisely because of it's "traditional" tone. So the players that are using Fenders want that tone, and the other players are playing something else, because they didn't have to get a Fender and then mod it.
I did a lot of mods to my '74 Fender P, and my two '74 Rics. Now I don't need those mods, because I have other basses, so I'm restoring the Rics back to stock, for those times I want that particular tone. I no longer own a Fender, but I wouldn't mind having a P bass set up with flats for that same reason.
And the other thing is some people either just don't care, or don't know any better. Whatever tone thery get is fine, even if it sounds like everyone else.
There are a LOT of posts here with people replacing their pickups in their new Fenders and asking for advice. Some of it is because some of the pickups Fender offers just aren't as good as the originals, and the other reason is the same as why people were putting Dimarzio and Bartolini Hi-A pickups in their P basses back in the 70's, and EMG's in the 80's... because those replacement pickups got a different tone that the players wanted, and still do.
So there's nothing wrong with Fenders, but they can't do some things as well as some other basses, and an Alembic doesn't sound like a P bass either. And that's OK.
The thing is the prevailing lack of originality in much of popular music these days. Too many bands trying to sound exactly alike. You don't get that impact like the first time you heard Chris Squire's or Stanley Clarke's tone. I love Motown, but that was like 40 years ago! Let's move on, shall we?
And popularity does not equal quality, otherwise we would all like crap like Britney Spears (or who ever is the latest flavor of the week, I haven't listened to the radio in years)! Popularity often comes down to the lowest common denominator. Walk into Guitar Center and look at basses. You don't even see some of the basses the are available. And that's the way companies like Fender and Gibson want it.
You can change the comment above to "Of the countless players I've encountered out in the real world playing, darned few did anything new or different."