The Downside of Fixing Apple Watches by Phone Repair Guru

What is the downside of repairs which require an Apple Watch display to be replaced?
The downside of repairs which require an Apple Watch display to be replaced is that the NFC chip must be removed from the old display and attached to the new display.

Is it hard to remove the NFC chip from an old Apple Watch display and attach it to the new display?
Yes, it is hard to remove the NFC chip from an old Apple Watch display and attach it to the new display.