I mean you realize how incredibly easily this 'ban' is circumvented, right? All people have to do to join the team is de-register as a lobbyist and then they can immediately join, which people are already doing. This is actually a step back from Obama, who had a year long ban from whenever you terminated your lobbyist status. After leaving they can't be a lobbyist for five years maybe but they can be 'advisers' or 'consultants' or other such nonsense, which is how people already circumvent current lobbying bans. This was not very effective under Obama and it won't be very effective here. As was already said it's pure posturing.
The corruption I'm worried about from this administration has little to do with lobbyists, it has to do with a president who has a vast array of business interests that are totally opaque to the government that he has refused to divest his interests in. The potential for massive corruption in a Trump administration is unprecedented in all of American history. He better hope the Democrats never retake a single house of Congress during his administration as the scandals that will pour out of that will be endless.
I mean surely even you can admit the sheer scale of potential (likely?) corruption is worrying, no?