The only problem is where should this end?
I'm all for improving trade, improving general cooperation, recycling rules/laws. The EU here did get a little too big with the curvature of a banana being mentioned.
However, I think a _LOT_ of people start to take issue when you say, "OK we're standardizing the way you vote now", "We're standardizing the way rights are structured in your country", "We now place the EU as a supreme directive with a foreign court on certain issues".
I can see the appeal, but this has a concerning dark side when it's brought in not through voting, but through treaty and trade in the real-world.
Notice how I'm avoiding saying crony-capitalizm or a alike.
I wish the EC was more successful in lasting by itself or the EU more flexible and less like a bag of hammers on certain issues which required a soft-touch.
I'm not a fan of red tape, but less of a fan of 'Brussels' (I'm not being lyteral) dictating law over a multi-layered legal system with various existing rights and paths to appeal. Hence why I personally voted for Brexit.
Yes I'm now working with those new laws and red-tape day to day (boy you think industy had it bad look into academia at times), but most of the issues I see come from foreign entities being in denial of Brexit happening and now drafting in draconian laws that look like they're punishing britain, even if it's just a case of the EU never thought to harmonize EU<->UK relations into 1 concrete set of agreements after the fact.
(Yes, Boris and alike did NOT help by sitting across the table acting like spolit childrean at a birthday party. No to mention the whole NI thing dominating discussions because the US has some dealings here historically (I'm being polite!) and for some reason dragged them in whenever there was a 'threat to the peace accords'...)
In summary, I like the idea, I just wish people didn't power-grab under the guise of standardization. (Huh, isn't that Intel with USB3, x86, ... or Apple with lightning, wifi, ...)