So far I have not received any response on my mail. The talk today was delayed until next week when both responsible people are present and have time for me.
On the meeting today my mail was shortly mentioned on a point that the corporate communication has to be improved because the CEO has "received a mail with many questions, good questions, where many have a quite simple answer and shouldn't have to be asked when communication would be right".
And of course, some of my questions got a partial answer during the meeting but there are enough left.
I also talked to more of my colleagues and showed them my mail and all said that it's written a bit "aggressive" but nevertheless hits the reality.