My family had the same experience. My kid was sent both to Ergotherapie und speech therapy - for stuttering (although he only seemed to stutter with the kindergarten teacher).

It seemed like half the class was in some or other kind of therapy. My wife and I speculated various reasons for what seemed to be us to be an extreme about of therapy...
- The schools have lots of resources and want to help everyone they can.
- They want to make sure they catch everything early, as a little effort early saves a lot later.
- They simply have hired a lot of therapists and want to make sure they have enough work.
- They are very concerned with being blamed for missing something and they error on the side of sending more (rather than fewer) kids for additional therapy.

Whatever the reason... your situation is what I would call 'common' for switzerland.
I could have used the word normal, but I chose common.