” . . . in theory, only parts that are related to the budget can be passed via reconciliation.”
But Reid’s pet parliamentarian will rule that everything is in order. This is no limitation at all.
The parliamentarian was put in by the GOP.
The point of the article was that, no matter what the parliamentarian might rule, his is an "advisory" role -- and Biden, as the presiding officer of the Senate, can overrule him.
It is, as you say, "no limitation at all" -- but it isn't necessary to impugn the ethics of the parliamentarian.
The current parliamentarian has been around for a long time and has a good reputation for objectivity.
And get a load of Biden damning reconciliation in 2005 in this video, "praying to God" that when RATS are in power they dont use it.