I mean... There's a lot more in that tweet than just celebrating a specific nomination. You seem to be specifically ignoring the majority of the post for whatever reason.
Great pick by @realDonaldTrump. 10 years ago, Republicans were the party of big business and Dems stood for the little guys, but today the tables have completely turned. People forget that the current antitrust actions against Big Tech were started under the first Trump admin.
One of the big issues the tweet specifically mentions is a fucking lie. Neither major party gives a shit about the little guys anymore. And the Trump admin most definitely has not been a supporter of antitrust actions against big tech, unless you consider political attacks as antitrust.
It definitely reads as an attempt to suck Trump's dick as opposed to just agreeing with a decision.