I think I should note that while I maintain that most of what I said in the d-box holds true, I found “Gemüt wallt," as well as a usage note, when I looked up "Wallung" in that big Brothers Grimm dictionary:
"von affekten (vgl. oben sp. 1278 f. das herz, die seele, das gemüt wallt), z. b. zorn, schrecken, verdrusz"

and

"auch sonst steht wallung für leidenschaftliche erregungen, ohne dasz dabei immer an die damit verbundene bewegung des blutes gedacht wird"
http://woerterbuchnetz.de/cgi-bin/WBNetz/wbgui_py?sigle=DWB&...

I also found "Gemüter in Wallung bringen" on the following page: https://www.redensarten-index.de/suche.php?suchbegriff=Gemüt...

Thus, the phrase may not be an amalgam of Gemüter erregen and Blut in Wallung bringen, though I can find both way more often and in much older books on Google.

It doesn’t really matter anyway. Here’s the Duden: "(in übertragener Bedeutung:〉 er, sein Gemüt, sein Blut geriet in Wallung (er geriet in heftige Erregung)"
https://www.duden.de/rechtschreibung/Wallung

As you can see, whether it’s er, Gemüt or Blut, the outcome is always the same, i.e., "heftige Erregung." This is true regardless of whether it’s the person, their temper or their blood that is "erregt," so all three words are pretty much interchangeable in meaning.

If you like option 1, you could say caused outrage/an uproar/(quite) a stir [among/in some quarters]…
[In my experience, anything, say, more poetic than cause or maybe spark is a bit too much in this context.]

If you like option 2, you could say tempers flared…
[This would describe an Affekt, a spontaneous reaction, as mentioned above.]

If you like option 3, you could say caused [some] people’s blood to boil…
[…or make, of course.]

If you don’t like any of the above, you could use infuriate, a word that is quite popular among journalists in the US.

I do like your idea for "manche" (which wasn’t part of the heading, so I didn’t include it), but I don’t agree that you should turn "some" into “many” people. Based on what I’ve read, his speech had a relatively limited impact; not even the political opposition seemed bothered by it.

Actually, his words seemed to spark outrage only among members of the governing coalition (and he led one of the government's agencies at the time).

I found examples for all of the above. Here’s one example that combines "tempers flared" and "in some quarters" (see the news report at the bottom of the left page): https://news.google.com/newspapers?nid=1346&dat=19790828&id=...

Or: "Some tempers flared, but it was never the case, nor will it be the case, that CNN would be denied credentials or the ability to cover New Year's Eve,' wrote the organization."
https://www.dailymail.co.uk/tvshowbiz/article-6551321/Andy-C...

And here is one that uses infuriate: "The move infuriated Trump's allies and prompted Republicans to turn on a senator they had previously championed as a calculated leader during tense investigations."
https://www.businessinsider.de/trump-justin-amash-impeachmen...

Incensed is another possibility. The choice is yours.