I would rather write this post of mine in the comments, but I can't because I don't have the required reputation for it. So I elaborate my statement further, trying to answer your question.
I think that the question should say whether it is easier than in some specific other country. It may come easy to some, but not to others. In the Czech Republic, it is also said that teachers like Ph.D. students, because they are a cheap workforce, but above all, this may not be the reason that applicants have an easier time. In Germany, as in the Czech Republic, it is the ratio of accepted and registered doctoral students for a certain field or for a certain supervisor. Mostly, workplaces or individual academics set quotas for themselves and rarely exceed them.
After researching the German system for Ph.D. students, I found out that in Germany a Ph.D. student often reports to a supervisor who has a project. In other words, the supervisor must secure funding for the doctoral student. If I compare it with the Czech Republic, where the funding of doctoral students is not addressed, or the doctoral student receives a prescribed amount to which the workplace is contributed by the state, but which is often insufficient and the doctoral student would need additional funding, then I would say that it is not easier in Germany. Because that principle suggests that better students are selected for funded projects.
However, as I indicated above, it really comes down to what the quota is and how many students apply for the Ph.D. This does not mean that the quotas have to be met if the quality of the applicants is poor, or that they cannot be slightly exceeded, but they will be approximately respected due to other reasons. Sometimes individual schools publish the statistics of those who applied and were accepted. If not, you can try to ask for it at the study department (or another similar workplace), or find a doctoral group on the Internet and ask them to get at least some information.
Finally, I should state that you can always increase your chances by doing better than average during your master's studies. If you will have activities related to research beyond the scope of your studies, you will be asked to rework your master's thesis into a paper, etc., your chances for admission to Ph.D. studies increase.