Unless the device undergoes any significant physical damage, there is no real risk of the problem spreading. iPads are designed with the LCD and digitizer separated from each other. Most repair shops don’t touch any iPad Pro models due to the volatility of that repair, but you may be able to find one to fix it for you. However, I wouldn’t recommend it unless you have no other options. If you are concerned about the issue, I would recommend returning it as you can get a refurbished one from Apple. While more expensive, it is guaranteed to be a high quality, good condition device, most likely with more storage than the one you acquired. They normally run about £200-£300 below MSRP.