I guess it depends on whether you think the EPA, and public schooling, have traditionally helped or hindered the "establishment".

If you think wars for oil in the mid-east etc. are what the establishment wants, then the scientists at the EPA are a threat to that.

If you think the establishment are Al Gore and his fellow communist hoaxers, then wrecking the EPA is an anti-elitists move.

True, he appointed terrible people to the head of some important organizations. Dismantling them could be labeled "anti-establishment" but if they were a net win for humanity and kill/downsizing is a net win for business, that is clearly the establishment trope of pandering to big business.