The purpose, if you want to call it a positive, was to be one of many revenue increases designed to offset the cost of the income tax cuts that were the primary focus of that legislation.
When you start up a business from scratch you quickly become familiar with bank requirements for a personal guarantee. The LLC will not protect you from personal financial exposure in the full amount of all your business credit facilities, loans, leases, etc.
It could be even worse — you could have a “good morning, sunshine”er among you. Yes, just that, followed by three or four minutes of a few crawling ellipses, on and off. Then, at last: “Got a minute?”