I know people who do, and have adopted a drill where the y flop their thumb from one side to the other on draw.
I would not recommend that--it clearly wants a lot of not-even-on-the-same-shelf out-of-box stuff.
But, having been through the, ahem, fascinating, world of ambi 1911 safeties, I can understand why.
For those unaware, all ambi 1911 thumb safeties are two-piece. Only real difference is where the joint is. They all need fitting, which can be interesting in a number of ways (one of the lest best is where the end of the shaft and the frame are not co-planar; where the 'flat' of the safety is not exactly perpendicular is next in line).
Having the offside safety be 'wobbly' ranks right up there with having it not be certainly fixed. Mashing down with you thumb and nothing happens is not good. Having the safety snag on every fool thing in a one meter radius is equally undesirable.
If done in a factory, or by a very legit smith is a bit different. It's spendy, too--and rightfully so. It's also more than a pain if you need to disassemble the safety, too.
But, that's my 2¢