It's because LeBron has a history with coaches.
People might say, 'He pushed Blatt so he wouldn't get a technical', but there are two problems there:
1.) he shoulder bumped both Spo and Brown. There are countless articles and accounts on LeBron both trying to get Spo fired and LeBron expecting special treatment from Brown.
2.) maybe Blatt wanted to get a technical. Maybe he was trying to light a fire under his players. Why should any player think they have the authority to intervene with what the coach is doing? I haven't seen many others do it.
That's three incidents of contact with a coach and a history of being a power-hungry egomaniac.
Maybe LeBron got wind of the latest reports with Blatt, maybe he saw a graph made by his home-skillets of slipping shoe sales, and decided to give the coach his approval.
Nothing's out of the question with LeBron. He should just shut up and do his job. Don't touch your coach. Don't draw attention to his plays. Don't make stupid statements like "He's our coach, who else is gonna coach us?" etc.
What happened to 2012-13 LeBron, the guy who just played basketball? Why is he even giving us the chance to interpret what he's saying and doing? Duncan, Bird, Russell, Magic, even Jordan didn't. LeBron has put himself in that class (self-proclaimed top 4 GOAT). Expect to be held up to it.
He's the most talented player in NBA history. He dominates on the court in ways very few have. But he's a complete tool who rarely brings a mature, winning attitude to a team (something most other ATGs did).
End of rant.