Oh, no, I wouldn’t. As a PVE-C player, I would be very, very happy to do it, because of what you said next:
Right now, the mod(s) that allow picking followers up do it by destroying your follower-in-the-world and giving you a follower-in-the-inventory that corresponds to the “archetype” (technically not the correct word) of the follower you were picking up.
In other words, if you’re picking up a level 20 T2 Cimmerian Archer with specific stats and growth chances, all you get is an inventory item for the T2 Cimmerian Archer. When you place it back down, you get a level 0 T2 Cimmerian Archer different growth chances.
What that allows you is to circumvent some of the effort you need to go through when you’re not happy with your follower’s RNG. Instead of breaking your follower’s bond and hunting another one, you can just pick it up and place it again, and repeat it until you’re happy.
Is that an issue? Depends on who you ask. I hate the slot-machine RNG stuff, so I would be ecstatic to have this. But Funcom probably has a drastically different opinion, seeing as how they implement it in the first place 
Also, Funcom is not alone. There are players who think this would be a problem, too, like @Palm522. I disagree with him, but we all have our opinions and I can’t pretend mine is the only one 
Personally, I wouldn’t mind having the thrall pick-up feature, but I think it’s not the best solution. I believe it would be much more fun and immersive to have two different new features that would cover the majority of the use cases we’ve been discussing here, without introducing undue problems.
One feature I would like is the one that is currently being discussed on another thread: the ability to revive fallen followers. Specifically, I would like to be able to do it the way I proposed elsewhere, via religious altars (for a hefty price), which would also help to revitalize religion in PVE.
The second feature I would like is the ability to reset the follower’s levels, attributes, and perks – but not growth chances.
Would this help me with moving my base? Nope, I would still have to do it by hand, hopefully with the help of a clanmate. But it would help me manage the follower cap in a satisfactory way, and it would help with many other things follower pickup would help with.
I didn’t change my mind, but there’s also nothing to elaborate further. I described my concerns and people have offered their own opinions. Some think it’s a legit issue, some think it’s nothing to be concerned about.