I have no doubt that Gruber will find reasons why the EU is bad and regulation is bad. At this point it's rather amusing how Daring Fireball (and many other American media) rants against regulation, and in another post complains about how companies exploit users. Regulation is unfortunately necessary: the market isn't as magical as we would like it to be and competition is not a magic wand that makes everything good…
So far the DMA seems like a partial-win for technology users. I wish it enshrined the right to run software on your own computer in less ambiguous language, because as-is there are carve-outs that may let Apple get away with their core technology fee and mandatory app signing.