Made sense for hundreds of years but two things are different now. First, everyone sues everyone all the time, courts are the forum for settling disputes, years ago one couldn’t even claim a cause of action for suits that now, regrettably, carry the day.
More importantly however is that government does EVERYTHING now. Sovereign immunity would never even have risen in the past. No such construct as an EPA would be on a bulldozer breaching a mine and ruining a river. Government wanting to change our diapers doesn’t deserve Sovereign Immunity.
Seems to be the “lawfare” cycle that the left has set up: start suing everyone except the leftists in power, whom you make “immune”. The leaven of the old assimilating itself into the new, as Jefferson wrote to Spencer Roane in 1819 (paraphrased).