There are still several different electric plugs in EU, their focus on tech companies looks like populism.
Of all the things you could've picked, this is what you decided to go with? This problem is already solved with the CEE 7/16 (IEC Type C) Europlug and the universal Schuko combo CEE 7/7 plug, compatible with CEE 7/4 (IEC Type E) and CEE 7/5 (IEC Type F) sockets, as those two basically work almost everywhere in the EU, and it's predictable that in a couple of decades all plugs will be either of those kinds and sockets may be standardised on the German 7/3 (IEC Type F) socket, as it's the most widespread anyway.
The only three big outliers that I can think of are Ireland (which I'm guessing, much like with left-hand drive, won't change their ways for practical reasons as, you know, it's an island, an important part of it with actual political ties to the UK) and, well, Great Britain (the reasons are the same, and the UK isn't part of the EU anyway) and their BS 1363 (IEC Type G) plugs and sockets, Switzerland and its SN 441011 (IEC Type J) plug and socket (which is also compatible with the Europlug, mind you, and again, it's yet another country that is not part of the EU but could very well introduce hybrid CEE 7/3 sockets with an extra receptacle for the Type J plug's earth prong if they ever joined the EU and were so inclined) and Italy and its really weird CEI 23-50 S 11/S 17 (IEC Type L) standard, which is now accommodated via the CEI 23-50 P 40 hybrid Schuko sockets, which can accept almost any appliance under the European sun.
All in all, considering the disjointed mess we began with, I think we're doing a great job on the electrical plug and socket standards nowadays, so… nope, not a great thing over which to pick on the EU lol. We even managed to get the Germans and the French, of all peoples, to take each other's standards and merge them into a hybrid, quasi-universal beast (the ugly but functional 7/7 plug, which allows one to move even quite heavy appliances across borders with no issue), for crying out loud.
And considering the fact that there are universal female IEC extension cord sockets on a lot of those appliances, power supplies, etc., you can even move them onto the weirder parts of Europe and beyond, so… yeah, that's a big fuss over nothing (case in point, I'm travelling to Switzerland soon and my plan is to buy a cheap IEC 60320 C13 to Type J plug extension cable, stick it on my Rewirable Schuko PowerCube adapter by allocacoc (I'm not getting a commission, I just love that thing and already bought two of those, except the first one wasn't for me, but for a now ex that moved to the UK), and BAM, instant access, on-the-go, to five Schuko/Europlug sockets (yeah, I know I can use Europlugs on regular Type J sockets, but it just so happen that the place where I'm staying at is an older building sorely lacking those anyway). I did the same before with it and an IEC 60320 to BS 1363 (IEC Type G) plug extension cable on the UK, Macau and Hong Kong and had no issue, either. It's surely not as practical as traveling across Europe and, well, not even needing an adapter, contrary to what your comment may lead some to believe, but again, we're talking about relatively insular/isolationist territories here, what more could you expect?
And before you tell me “boo-hoo, that's all very confusing electrical standards mumbo-jumbo”, I get you, but nah. Do travel across Europe and try to plug your stuff onto the available sockets; chances are, they will fit and work, first try, with zero fuss. Especially on hotels, hostels, AirBnBs, etc., as those tend to be renovated frequently and get the latest and greatest, most universal socket standards. And hey, if you're hailing from abroad, you may even find some Shucko-to-universal adapters already plugged onto the sockets (I know I've seen those on hotels already) or be able to find them in some drawer, get them at the reception desk, or buy them from a corner store nearby.